Understanding the technology behind cold therapy machines, how they deliver cooling to injured joints, and why some systems combine cold water circulation with intermittent compression.

Cold therapy machines are commonly used following orthopedic surgery, sports injuries, and certain rehabilitation treatments. You may have seen them recommended after a knee replacement, ACL reconstruction, rotator cuff surgery, or another procedure. But how does a cold therapy machine actually work?

A cold therapy machine works by circulating chilled water from an insulated reservoir through a specialized treatment pad positioned around an injured or recovering body part. The water absorbs heat from the treatment area, returns to the reservoir, and is cooled again before circulating through the pad.

Some machines go one step further by incorporating intermittent pneumatic compression, which uses air pressure to periodically squeeze and release the treatment area. Together, these technologies can provide controlled, repeatable treatment sessions without requiring patients to continually reposition conventional ice packs.

Understanding the difference between cooling, circulation, and compression can help you select the appropriate equipment, use it correctly, and troubleshoot common problems.

In this guide, we'll explain:

• The main components of a cold therapy machine

• How ice and water create a continuous cooling system

• How the circulation pump and tubing work

• How temperature is maintained during treatment

• The difference between cold therapy and cold compression

• How motorized and gravity-fed systems differ

• Common causes of poor water circulation

• Safe operation, cleaning, and maintenance

• What to look for when choosing a cold therapy system

Whether you're a patient, caregiver, physical therapist, or healthcare professional, this guide will help you understand the technology behind modern cold therapy equipment.

Medical disclaimer: Cold therapy machines are medical devices or therapeutic equipment that can cause injury if used improperly. Always follow the specific device instructions and your licensed healthcare professional's recommendations regarding treatment duration, temperature, compression, skin protection, and monitoring.

1. What Is a Cold Therapy Machine?

A cold therapy machine is a device designed to deliver cooling to a targeted area of the body through a specialized treatment pad or cuff.

Unlike a traditional ice pack, which contains a fixed amount of frozen material, many cold therapy machines circulate chilled water through flexible tubing and channels inside an anatomical pad.

The equipment typically consists of:

1. An insulated cooler or reservoir that holds ice and water.

2. A circulation system that moves chilled water through the device.

3. Insulated tubing that connects the cooler to the treatment pad.

4. A cold therapy pad or cuff that distributes cooling around the treatment area.

5. A power supply or gravity-fed mechanism that drives water movement.

6. Optional compression components that apply intermittent pressure.

The main purpose is to transfer heat away from the treatment area in a repeatable, controlled manner.

Cold therapy machines are commonly used for the knee, shoulder, ankle, hip, back, and other body areas, depending on the available pad and the device's intended use.

Are all cold therapy machines the same?

No.

Cold therapy equipment generally falls into several categories:

System type	How it works	Primary feature
Motorized cold therapy	Electric pump circulates chilled water	Powered water circulation
Gravity-fed cold therapy	Cooler elevation and pressure differences move water	Operation without a circulation motor
Motorized cold + compression	Circulating cold water plus pneumatic pressure	Two therapeutic functions
Gravity-fed cold + compression	Water circulation and cuff pressure managed by system design	Cold and pressure without a conventional powered compression pump
Reusable gel cold packs	Frozen gel absorbs heat without circulation	Simple, portable cooling

The differences matter because a motorized cooling system does not automatically provide active compression, and a compression system does not necessarily offer adjustable water temperature.

2. The Five-Step Process: How a Cold Therapy Machine Works

Most motorized ice-water cold therapy machines follow a relatively simple process.

Step 1: Ice and water are added to the reservoir

The insulated reservoir is filled with water and ice according to the manufacturer's instructions.

The ice absorbs heat as it melts, helping keep the surrounding water cold.

The reservoir acts as the cooling source for the system.

Unlike a refrigerator, most conventional ice-based cold therapy machines do not actively manufacture cold air or freeze water.

Instead, they rely on the ice placed inside the cooler.

Step 2: The pump draws chilled water from the reservoir

When the machine is powered on, an internal electric pump begins moving chilled water through the circulation system.

The pump creates the pressure difference needed to move water through the tubing and treatment pad.

Some devices use self-priming pump designs, while others require specific setup procedures to establish proper flow.

Step 3: Chilled water travels through insulated tubing

Water moves from the cooler through a flexible hose toward the treatment pad.

Insulated tubing helps limit unwanted heat gain as the water travels between the reservoir and the patient.

Tubing design varies by manufacturer.

Some systems use separate supply and return pathways inside a combined hose assembly.

Step 4: Water circulates through the treatment pad

The treatment pad contains internal channels that distribute the chilled water across its contact area.

As the water moves through these channels, heat transfers from the warmer treatment area toward the cooler pad and circulating water.

This process is based on a fundamental principle of thermodynamics:

Heat naturally moves from a warmer region toward a cooler region.

The cold therapy machine does not inject cold into the body. Instead, it helps remove heat from the tissues near the treatment pad.

Step 5: The water returns to the reservoir

After passing through the pad, the water returns to the cooler.

There, it exchanges heat with the remaining ice and chilled water.

The cycle repeats while the system is operating.

The basic circulation cycle

Ice + water reservoir → Circulation pump → Supply tubing → Treatment pad → Return tubing → Reservoir

This continuous recirculation is what distinguishes a motorized cold therapy system from a stationary ice pack.

3. The Science Behind Cold Therapy: How Cooling Actually Happens

To understand cold therapy machines, it helps to understand three basic scientific concepts.

Heat transfer

The human body is generally warmer than the chilled treatment pad.

When the pad contacts the treatment area, heat moves from the warmer tissues toward the cooler surface.

The circulating water carries some of that absorbed heat back to the reservoir.

The effectiveness of this process depends on factors such as:

• Water temperature

• Pad design and surface contact

• Water flow rate

• Insulation and clothing between the pad and skin

• Treatment duration

• Ambient temperature

• The patient's circulation and tissue characteristics

The role of melting ice

Ice provides cooling because it absorbs a substantial amount of energy as it changes from solid ice into liquid water.

This energy is called the latent heat of fusion.

At normal atmospheric pressure, pure ice melts at approximately 32°F (0°C).

During melting, the ice absorbs heat without immediately undergoing a large temperature increase.

That is why an ice-water mixture can provide a relatively stable cooling source while sufficient ice remains.

Why circulating water matters

A conventional ice pack absorbs heat from the treatment area and gradually warms.

A circulating water system continually moves warmed water away from the pad and replaces it with colder water from the reservoir.

This can make cooling more consistent over time.

However, consistent circulation does not mean that the treatment temperature is automatically safe for every patient.

The pad may become cold enough to cause injury if used incorrectly.

4. How Does a Cold Therapy Machine Maintain Its Temperature?

A common misconception is that every cold therapy machine contains a built-in thermostat that precisely controls treatment temperature.

In reality, temperature regulation varies significantly by device.

Basic ice-water systems

In a basic system, cooling depends largely on:

• How much ice is in the reservoir

• The amount of water

• The cooler's insulation

• How quickly ice melts

• Water circulation

• Environmental conditions

As ice melts and the reservoir warms, the available cooling capacity gradually decreases.

Systems with selectable cooling settings

Some advanced systems offer different cooling settings.

These may change water circulation characteristics or otherwise regulate cooling according to the manufacturer's design.

For example, the Breg Polar Care Wave offers two operating cold settings.

Breg publishes average pad operating temperature specifications of at least 45°F for its colder setting and at least 50°F for its cold setting.

These values are manufacturer specifications for the device, not universal temperatures for all cold therapy machines.

Does colder always mean better?

No. Lower temperatures can increase the risk of cold-related injury.

The correct treatment settings depend on the device, the patient's condition, skin sensation, circulation, and clinician instructions.

Patients should never assume that using the coldest available setting will produce better recovery results.

5. What Is the Difference Between Cold Therapy and Cold Compression Therapy?

Cold therapy and compression therapy are related but distinct treatment methods.

Cold therapy

Cold therapy uses reduced temperatures to influence pain perception and local tissue responses.

A cold-only machine circulates chilled water through a treatment pad.

Examples include motorized systems such as the Breg Polar Care Cube.

Compression therapy

Compression applies pressure to an area of the body.

Some compression systems use inflatable air chambers that periodically increase and decrease pressure.

This is known as intermittent pneumatic compression.

Cold compression therapy

Cold compression machines combine circulating cold therapy with compression.

These systems typically use two separate mechanisms:

1. A water circulation system for cooling.

2. An air-pressure system for compression.

Examples include the Breg Polar Care Wave and certain Omni Ice compression systems.

Comparison of cooling and compression technologies

Feature	Cold-only system	Cold + active compression system
Circulates chilled water	Yes	Yes
Uses an anatomical pad	Yes	Yes
Contains a water pump	Usually, if motorized	Usually
Contains a pneumatic compression mechanism	No	Yes
Provides intermittent pressure cycles	No	Yes
Compression settings	Not applicable	Model-dependent
Temperature settings	Model-dependent	Model-dependent
Requires clinician-approved use	Yes	Yes

A cold compression system may provide additional features, but it is not automatically the best choice for every patient.

Active compression may be inappropriate for certain medical conditions.

6. How Does Intermittent Pneumatic Compression Work?

Intermittent pneumatic compression uses controlled air pressure to inflate and deflate chambers within a compatible pad or cuff.

The process generally works as follows.

Step 1: The compression pump moves air into the pad

An internal pump sends air through tubing into inflatable chambers.

These chambers may be separate from the water channels responsible for cooling.

Step 2: The chambers inflate

As the chambers fill with air, they apply pressure to the treatment area.

The amount of pressure depends on the device and selected settings.

Step 3: Pressure is released

After the programmed compression period, air is released or redistributed.

The pressure on the treatment area decreases.

Step 4: The cycle repeats

The system alternates between compression and release according to its programmed operation.

Some devices allow users to choose different compression levels.

For example, the Breg Polar Care Wave has published low and regular compression settings with average peak pressures of approximately 25 mmHg and 50 mmHg.

These values are specific to that model.

Does compression improve cold therapy?

Compression can be part of a clinician-directed recovery program, but outcomes vary by procedure and patient.

It is important to distinguish between comfort, symptom management, and claims about accelerated healing.

No cold compression machine should be assumed to guarantee faster tissue healing.

Additionally, postoperative cold compression systems are not necessarily substitutes for medical devices specifically prescribed for blood-clot prevention.

7. Motorized vs. Gravity-Fed Cold Therapy Machines

Not all cold therapy systems need electricity to circulate water.

Two common designs are motorized and gravity-fed systems.

Motorized cold therapy machines

A motorized machine uses an electric pump to circulate water through the pad.

Common advantages:

• Automated circulation

• Convenient repeated operation

• Less dependence on cooler elevation

• Some models offer additional controls

Potential limitations:

• Requires an electrical outlet or compatible battery

• Contains components that may need troubleshooting

• Usually costs more than basic non-motorized equipment

Gravity-fed cold therapy systems

A gravity-fed system relies on cooler elevation and pressure differences to move chilled water into the treatment cuff.

Depending on the design, the user may need to raise or lower the cooler or follow other steps to manage circulation and pressure.

Common advantages:

• May operate without an electric pump

• Simpler mechanical design

• Useful where electrical power is unavailable

Potential limitations:

• More manual involvement

• Proper cooler positioning is important

• Different operation from automated systems

Motorized vs. gravity-fed comparison

Feature	Motorized system	Gravity-fed system
Water circulation	Electric pump	Gravity and pressure differences
Electrical power	Usually required	Often not required
User involvement	Generally lower	Generally higher
Portability	Model-dependent	Often straightforward
Automated compression	Available on selected models	Not equivalent to powered pneumatic compression
Best application	Convenient powered circulation	Simpler non-motorized operation

Important: An Aircast Gravity Cryo/Cuff and an Aircast Cryo/Cuff IC are not the same system. The IC version uses an integrated pump to automate aspects of cold and compression therapy.

8. How Do Cold Therapy Pads Work?

The pad is one of the most important components of the entire system.

A cold therapy pad is not simply a bag of cold water.

It is an engineered component designed to distribute cooling across a specific treatment area.

Anatomical pad design

Manufacturers offer pads for different parts of the body, including:

• Knee

• Shoulder

• Ankle

• Hip

• Back

• Hand and wrist

• Universal or multi-use applications

Each pad may differ in shape, channel layout, attachment method, and connector design.

Why pad fit matters

A properly selected pad can help distribute cooling across the intended treatment area.

Poor fit can lead to inadequate contact, discomfort, excessive pressure, or difficulty positioning the pad.

Are cold therapy pads interchangeable?

Not necessarily.

Even pads from the same manufacturer may be designed for different machine families.

For example, Breg offers WrapOn pads for certain Polar Care systems and separate cold compression pads for the Polar Care Wave.

Always verify compatibility by the exact machine model and pad part number.

Can you place a cold therapy pad directly on the skin?

That depends on the device and its instructions.

Some machines require a specific insulation barrier between the pad and the skin.

Others use pads designed for direct application under particular conditions.

Never assume that instructions for one machine apply to another.

9. How Long Does a Cold Therapy Machine Stay Cold?

The answer depends on the reservoir size, insulation, ice quantity, water volume, environmental temperature, and machine design.

Some manufacturers advertise cooling capacity lasting several hours before the ice must be replenished.

For example, Breg describes approximately six to eight hours of cooling capacity for the Polar Care Cube under its intended operating conditions.

Cooling duration is not treatment duration

This is an essential distinction.

A machine that can maintain cold water for eight hours is not necessarily intended to be applied to the body continuously for eight hours.

The safe treatment schedule depends on your surgeon's instructions, the device, your medical history, and skin monitoring requirements.

What causes ice to melt faster?

Several factors can shorten cooling duration:

• Higher room temperatures

• Frequent opening of the cooler

• Insufficient ice

• Improper water levels

• Heat entering through tubing and the reservoir

• Device operating conditions

Use the manufacturer's recommended ice and water quantities rather than attempting to maximize cooling by overfilling the reservoir.

10. What Are the Benefits and Limitations of Cold Therapy Machines?

Cold therapy machines are widely used in orthopedic recovery, but it is important to separate practical advantages from claims that are not consistently supported by clinical evidence.

Potential practical benefits

Convenience

Motorized systems can reduce the need to reposition conventional ice packs.

Anatomical coverage

Dedicated pads are designed to conform to particular body areas.

Repeatable operation

The same equipment can be used for multiple prescribed sessions.

Optional compression

Selected models combine cold therapy with pneumatic compression.

What does the clinical research show?

A Cochrane systematic review of cold therapy after total knee replacement evaluated 22 trials involving 1,839 participants.

The review found low-certainty evidence that cryotherapy may improve some short-term outcomes, including pain and knee range of motion.

However, the researchers emphasized that the overall evidence was limited, and several important outcomes remained uncertain.

These findings do not establish that every cold therapy machine is more effective than a conventional ice pack or that a particular brand produces faster recovery.

Important limitations

• Clinical benefits can vary by condition and procedure.

• More expensive machines are not automatically more effective.

• Continuous water circulation does not guarantee safe treatment temperatures.

• Improper use can cause cold-related injuries.

• Cold therapy does not replace rehabilitation, medication, or other prescribed treatments.

The best equipment is the equipment that meets the patient's clinical needs and can be used safely and correctly.

11. How to Set Up a Cold Therapy Machine

Although setup varies by manufacturer, most motorized systems follow a similar general sequence.

Step 1: Review the instructions

Read the user manual and confirm the prescribed treatment settings.

Make sure you understand the device's warnings and any required insulation or skin protection.

Step 2: Position the cooler

Place the cooler on a stable, level surface where it will not tip over or create a tripping hazard.

Keep electrical components away from spilled water.

Step 3: Add the recommended amount of water and ice

Follow the marked fill lines or the manufacturer's specified quantities.

Do not overfill.

Step 4: Connect the compatible pad

Attach the tubing securely using the connectors designed for the system.

Do not force incompatible fittings.

Step 5: Position the treatment pad

Place the pad according to the manufacturer's instructions and the healthcare professional's guidance.

Use the required barrier or dressing, if applicable.

Step 6: Start the system

Turn on the pump or operate the gravity-fed mechanism as directed.

If the machine has temperature or compression controls, use only the prescribed settings.

Step 7: Monitor the treatment

Check for proper circulation, comfort, skin changes, and unusual pressure.

Stop treatment if you experience concerning symptoms.

Step 8: Shut down and store correctly

Turn off the device and follow the instructions for draining, cleaning, and storing the cooler and pad.

Do not leave standing water inside the machine for extended periods unless the manufacturer specifically permits it.

12. Why Is My Cold Therapy Machine Not Circulating Water?

One of the most common technical questions is why a machine appears to be running but the pad is not getting cold.

Several issues can interrupt water circulation.

Common causes and what to check

Problem	Possible cause	Safe initial check
Pump does not start	Power supply or connection issue	Verify outlet, approved adapter, and power connection
Pump runs but pad stays warm	Insufficient ice or circulation problem	Check ice/water levels and visible hose routing
Water flow seems weak	Kinked tubing	Inspect tubing for bends or pinches
Pad does not fill properly	Connector not fully seated	Confirm connection using the device manual
Water leaks	Loose connection or damaged component	Stop operation and inspect for visible damage
Pump makes unusual noise	Flow restriction or mechanical problem	Stop use and consult manufacturer troubleshooting instructions
Compression does not operate	Incorrect setting or pneumatic connection issue	Confirm approved settings and compatible pad

Can air become trapped in the system?

Yes. Depending on the design, trapped air can interfere with circulation.

Some machines have specific priming or air-removal procedures.

Use only the procedure provided by the manufacturer.

Should you open the pump housing to fix it?

No, unless the manufacturer explicitly authorizes a user-serviceable procedure.

Disassembling electrical or pump components may create safety risks and void the warranty.

For persistent problems, contact the equipment manufacturer or an authorized service provider.

13. How to Clean and Maintain a Cold Therapy Machine

Proper cleaning can help maintain equipment performance and reduce contamination risks.

After use

Depending on the manufacturer's instructions:

1. Turn off and unplug the device.

2. Disconnect the pad if permitted.

3. Empty the reservoir.

4. Clean accessible surfaces using approved methods.

5. Dry the cooler and tubing as directed.

6. Store the equipment in a clean, dry location.

Avoid common cleaning mistakes

Do not assume that household bleach, alcohol, or other disinfectants are compatible with every system.

Some manufacturers provide specific dilution and flushing instructions, while others prohibit certain chemicals.

Use only approved cleaning procedures.

Inspect the equipment regularly

Check for:

• Cracked tubing

• Damaged connectors

• Leaks

• Worn pads

• Unusual pump noises

• Damaged power cords

• Missing or unreadable safety labels

Replace damaged components only with compatible, manufacturer-approved parts.

Can you reuse cold therapy pads?

That depends on the product.

Some pads are labeled for single-patient use, while others have different reuse instructions.

Never share a single-patient-use pad between patients contrary to its labeling.

14. Cold Therapy Machine Safety: What Every User Should Know

Cold therapy machines can cause injury when used improperly.

The U.S. Food and Drug Administration warns that water-circulating hot and cold therapy devices may cause cold-related injuries, especially when users do not follow treatment and monitoring instructions.

Important safety precautions

Follow prescribed treatment duration.

Do not assume that longer sessions are better.

Protect your skin.

Use the barrier required by the device manufacturer and your healthcare professional.

Monitor for warning signs.

Stop treatment and seek medical guidance for burning, persistent numbness, unusual skin discoloration, blistering, or significant discomfort.

Use caution with impaired sensation.

Patients with neuropathy, diabetes-related complications, impaired circulation, or reduced sensation after anesthesia may face increased risks.

Follow compression precautions.

Active compression may be inappropriate for patients with certain vascular conditions or other medical concerns.

Avoid unsupervised overnight use unless specifically authorized.

Sleeping through treatment can make it harder to detect cold injury or excessive pressure.

Do not use damaged equipment.

Leaks, damaged electrical cords, or malfunctioning pumps should be addressed before further operation.

Is cold therapy safe for everyone?

No.

Certain medical conditions can increase the risk of cold injury or make compression inappropriate.

Always discuss the use of cold therapy equipment with your healthcare professional, especially if you have circulatory disease, neuropathy, cold hypersensitivity, or other relevant conditions.

15. How to Choose the Right Cold Therapy Machine

Understanding how the technology works makes it easier to compare different systems.

Consider these seven factors

1. Cooling mechanism

Do you prefer a motorized system or a gravity-fed design?

2. Compression requirements

Do you need circulating cold alone or active intermittent compression?

3. Pad compatibility

Does the manufacturer offer a pad designed for your treatment area?

4. Temperature controls

Does the machine offer adjustable cooling, and are those settings appropriate for your prescription?

5. Portability

Will the machine remain near a bed or chair, or do you need a portable configuration?

6. Maintenance

How easy is it to refill, drain, clean, and store?

7. Replacement parts

Are compatible pads, hoses, power supplies, and accessories available?

Examples of different cold therapy technologies

Machine	Technology category	Main distinction
Breg Polar Care Cube	Motorized cold-only	Straightforward circulating cold therapy
Breg Polar Care Kodiak	Motorized cold-only	Optional battery-powered configuration
Breg Polar Care Wave	Motorized cold + compression	Adjustable cooling and pneumatic compression
DonJoy IceMan CLEAR3	Motorized cold-only	Recirculating cold therapy
Aircast Gravity Cryo/Cuff	Gravity-fed cold therapy	Non-motorized water movement
Aircast Cryo/Cuff IC	Pump-assisted cold and compression	Automated cuff operation
Omni Ice Compression Pro	Cold + intermittent compression	Combined cooling and compression system
Omni Ice Pulse Compression	Cold + intermittent compression	Selectable compression and session controls

Note: Features, included accessories, and operating requirements vary by exact model and package. Always confirm current specifications before purchasing.

Explore cold therapy systems and compatible accessories at SupplyColdTherapy.com.

Frequently Asked Questions About Cold Therapy Machines

Does a cold therapy machine actually make water cold?

Most conventional ice-based machines do not actively refrigerate water. They use ice placed in an insulated reservoir to cool the water that circulates through the treatment pad.

Some specialized systems use different cooling technologies, so the operating principle depends on the device.

Does the water continuously circulate?

In many motorized systems, the pump circulates water while the machine is operating.

However, continuous circulation does not mean continuous application is appropriate.

Follow the prescribed treatment schedule.

How cold does a cold therapy machine get?

Temperatures vary by machine, operating setting, reservoir conditions, and pad design.

Some systems provide published operating temperature ranges, while others rely primarily on an ice-water mixture.

Always follow the manufacturer's instructions.

Can I use frozen water bottles instead of ice cubes?

Some manufacturers permit specific reusable ice containers or approved ice-bag accessories.

Others specify cubed ice or particular filling procedures.

Do not substitute frozen bottles unless the manufacturer confirms they are appropriate.

Why does the water need to return to the cooler?

The returning water has absorbed heat while passing through the treatment pad.

Returning it to the ice-filled reservoir allows the water to cool again before recirculation.

Does a cold therapy machine need electricity?

Motorized systems generally require an electrical supply or compatible battery.

Gravity-fed systems may operate without electricity.

Is cold compression the same as regular compression therapy?

No.

Cold compression combines cooling with pressure applied through a compatible device.

Compression stockings, pneumatic blood-clot prevention systems, and cold compression therapy devices may have different intended uses and should not be considered interchangeable.

Can I use a knee pad on a shoulder?

Only if the manufacturer specifically approves the pad for that application.

Anatomical pads are designed for particular treatment areas and should be used as labeled.

How often should I refill the ice?

Refill frequency depends on the model, reservoir conditions, and manufacturer instructions.

Some systems may maintain cooling for several hours, but cooling capacity is not the same as recommended treatment duration.

Why is my cold therapy pad not getting cold?

Possible causes include insufficient ice, a kinked hose, an improperly connected pad, inadequate water circulation, or a malfunctioning component.

Follow the manufacturer's troubleshooting instructions before attempting repairs.

Can cold therapy machines be used after knee or shoulder surgery?

Yes, these devices are commonly used in orthopedic recovery when prescribed or recommended by a healthcare professional.

The appropriate device, pad, temperature, and treatment schedule depend on the procedure and individual medical circumstances.

Is a cold therapy machine better than a traditional ice pack?

A machine may offer advantages in convenience, anatomical coverage, and repeatable circulation.

However, research does not consistently demonstrate that circulating cold therapy machines produce superior clinical outcomes compared with conventional cold packs in every situation.

Final Thoughts: Understanding the Technology Behind Cold Therapy

Cold therapy machines combine relatively straightforward engineering principles with specialized equipment designed for targeted cooling.

The basic process involves five steps:

1. Ice cools the water inside an insulated reservoir.

2. A pump or gravity-fed mechanism moves the chilled water.

3. Tubing carries the water to a treatment pad.

4. The pad transfers heat away from the treatment area.

5. Water returns to the reservoir to be cooled again.

Some systems add intermittent pneumatic compression to provide another treatment function.

Understanding these mechanisms helps patients and healthcare professionals distinguish between equipment types, recognize common operating problems, and make better-informed decisions.

At Supply Cold Therapy, we help customers explore cold therapy machines, compression systems, anatomical pads, and compatible accessories from established orthopedic equipment manufacturers.

Whether you're researching a motorized cold therapy system, comparing compression features, or looking for a replacement pad, our goal is to make the technology easier to understand.

Explore cold therapy equipment and accessories at SupplyColdTherapy.com.

Sources and Further Reading

1. U.S. Food and Drug Administration. Cold Facts to Help Avoid Injury from Water-Circulating Hot/Cold Therapy Devices. https://www.fda.gov/consumers/consumer-updates/cold-facts-help-avoid-injury-water-circulating-hotcold-therapy-devices

2. Cochrane Database of Systematic Reviews. Cryotherapy Following Total Knee Replacement. https://www.cochrane.org/evidence/CD007911_cold-therapy-following-total-knee-replacement-surgery

3. Breg. Polar Care Cube — Product Information and Instructions. https://www.breg.com/products/cold-therapy/devices/cube-cold-therapy/

4. Breg. Polar Care Wave — Product Specifications and Instructions. https://www.breg.com/products/cold-therapy/devices/polar-care-wave/

5. Breg. Polar Care Kodiak — Product Information. https://www.breg.com/products/cold-therapy/devices/kodiak-cold-therapy/

6. Breg. Cold Therapy Instructions for Use. https://www.breg.com/ifu/

Editorial note: Technical explanations are general and do not replace model-specific instructions. Device specifications should be verified against the current manufacturer documentation before publication. Clinical and safety information should be reviewed by a qualified healthcare professional.