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Experience fast heat relief

Kore Kooler®
Rehab Chair

DQE Kore Kooler Rehab Chair for Heat Stress Relief image

Combat Heat Stress

With Active Cooling

What is heat stress? Heat stress occurs when the body’s internal core temperature rises above its average level. As your core temperature rises, so does the risk of heat stress symptoms.

The Kore Kooler Rehab Chair provides an effective means of lowering body temperature through hand and forearm immersion. Combined with rest and hydration, hand and forearm immersion is a safe, impactful way to reduce the impact of stress on health and safety.

Let’s learn more about the problem of heat stress, the heat illnesses that heat stress causes, and how the Kore Kooler Rehab Chair can help!

What causes heat stress?

Heat stress occurs when your body cannot get rid of excess heat. Heat stress causes include high air temperature and humidity, low acclimation to working in extreme temperatures, and non-breathable clothing.

A variety of personal factors, including your overall physical condition, history of previous exposure, percentage of body fat, and hydration status, can also impact your response to severe weather exposure.

High Air Temperature

If the air temperature is as warm or warmer than the skin (91.5°F), heat transfer away from the body decreases to the point where it reverses; thus, the body gains heat.

In these circumstances, the heart continues to pump blood to the body surface, where the sweat glands empty electrolytes and water onto the skin surface. Evaporation becomes the only effective method of maintaining body temperature.


nON-breathable cLOTHING

Protective clothing inhibits heat transfer between the body and the surrounding environment.

If clothing does not allow moisture to transport away from the body, the environment between the body and clothes quickly becomes saturated with moisture. This affects the body’s ability to lose heat through the evaporation of sweat.



Acclimation to hot environments is necessary to allow individuals’ bodies to adapt to high heat. Acclimatization can take several days to weeks depending on the heat exposure level relative to the typical environment that workers may be used to.

Older people also experience a slow response of sweat glands and therefore a less effective control of body temperature.



Under high humidity conditions, even the evaporative mechanisms decrease, and the body’s efforts to maintain an acceptable temperature are significantly impaired.

With a large quantity of blood going to the external surface of the body, little remains for the active muscles, the brain, and the internal organs, leading to declines in strength, with fatigue occurring quickly.


High Temperature + High Humidity + Physical Work = Heat Illness

The impact of Heat Stress

Work performance and core body temperature are strongly linked, and heat stress impacts the body’s automatic temperature regulation. The brain typically adjusts various bodily functions, such as blood flow, heart and respiratory rate, and sweating, but that changes as heat stress increases. Routine tasks become impaired when the body’s regulation fails, and core body temperature moves away from normal.

As the air temperature rises, the body stays cool when sweat evaporates. On hot, humid days, increased moisture in the air slows the evaporation of sweat. Without proper cooling, body temperature rises, and heat illness occurs.

Who is affected by heat stress?

Heat stress can affect anyone: the young and old, athletes, and professionals working indoors or outdoors.

Industrial Worker Experiencing Heat Stress image


Athlete Experiencing Heat Stress image


Firefighter Experiencing Heat Stress image

Emergency Responders

Event Attendee Experiencing High Heat Conditions image

Event Attendees

Construction Worker in High Heat image

Construction workers

What is Heat Illness?

Heat-related illness describes a range of conditions that result from the body’s inability to cope with the heat. Familiarizing yourself and recognizing the signs of heat stroke and other heat illnesses is critical for heat safety and the prevention of heat emergencies.

The most severe heat-induced illnesses are heat exhaustion and heat stroke. What’s the difference between heat stroke vs. heat exhaustion? If left untreated, heat exhaustion could progress to heat stroke and death. Heat exhaustion typically occurs when core body temperature is between 98.6°F to 104°F (37°C to 40°C). The likelihood of heatstroke increases as your core temperature reaches 104°F (40°C), and body temperatures that exceed 106°F (41.1°C) generally are catastrophic and require immediate aggressive therapy. The exact temperature at which heat illnesses occur varies among individuals.

Heat-Related Illness signs and treatment

Heat rash

Heat rash is a skin irritation caused by excessive sweating during hot, humid weather.

Heat rash Symptoms

Red clusters of small blisters that look like pimples on the skin (usually on the neck, chest, groin, or elbow creases)

heat rash treatment

Stay in a cool, dry place

Keep the rash dry

Use powder (like baby powder) to soothe the rash

Heat Cramps

Heat cramps are painful muscle cramps that occur during work/exercise in a hot environment due to excessive sweating and insufficient fluid intake. The onset of cramping pain may be delayed and emerge a few hours after an individual has stopped being active.

Heat CrampS Symptoms

Painful muscle spasms or involuntary muscle jerks in arms, legs, or abdomen that are brief and usually go away on their own

heat cramps treatment

Cool off in a shaded/air-conditioned area

Loosen or remove excess clothing

Provide cool salted water (1 teaspoon/gallon of water) or commercial fluid replacement beverage

Seek medical attention if symptoms worsen or don’t go away within 1 hour

Heat Syncope

Heat Syncope is a fainting episode or dizziness that occurs when standing too long or suddenly standing up after sitting or lying down. Factors that contribute to heat syncope may include dehydration and lack of acclimatization.

Heat Syncope Symptoms

Fainting (short duration)


Light-headedness from standing too long or suddenly rising from a sitting or lying position

Heat Syncope Treatment

Sit or lie down in a shaded/air-conditioned area

Slowly drink water, clear juice, or a commercial fluid replacement beverage


Rhabdomyolysis (Rhabdo) occurs when damaged muscle tissue releases its proteins and electrolytes into the blood. Rhabdomyolysis is a serious medical condition that can damage the heart and kidneys, cause permanent disability, or lead to death.

Rhabdo symptoms

Muscle cramps, aches, or pains

Dark urine (tea- or cola-colored)

Feeling weak or too tired to complete job tasks or exercise

A rise in muscle protein creatine kinase (CK) or creatine phosphokinase (CPK)

(The only way to properly diagnose Rhabdo is through blood tests. You can’t tell by symptoms alone since heat exposure conditions like dehydration and heat cramps can cause the same symptoms.)

Rhabdo treatment

Drinking fluids

Getting out of the heat


Moderate to severe cases may need IV fluids and hospital admission

Heat Exhaustion

Heat exhaustion is a potential heat emergency due to excessive fluid and electrolyte loss. Heat exhaustion occurs from sweating while working in a hot, humid environment, causing the body to overheat. If signs of heat exhaustion are untreated, it may progress to shock or heat stroke.

Heat Exhaustion symptoms

May complain of headache, dizziness, weakness, thirst, and nausea

Often pale with cool, moist skin

Sweating profusely

Muscle cramps or pains

Feels faint or dizzy

Elevated core body temperature – usually > 100°F (37.8°C)

Heat Exhaustion treatment

Cool off in a shaded/air-conditioned area

Loosen or remove excess clothing

Drink cool, salted water (1 tsp/gallon of water) or commercial fluid replacement beverage

Use active cooling to lower your core body temperature (Kore Kooler Rehab Chair)

Seek medical attention if symptoms worsen/last > 1 hr.

Heat stroke

Heat stroke, also called sunstroke, is a life-threatening emergency due to the body’s inability to regulate its core temperature. As the body’s water and salt supplies decline, its temperature rises to extreme levels to the point where brain injury and damage to other internal organs may result.

Heat Stroke Symptoms

Markedly abnormal mental status, unconscious, slurred speech, or seizure

Flushed, hot, and dry skin (although it may be moist initially from previous sweating)

Slightly elevated blood pressure at first that falls later

Hyperventilating with a rapid pulse

Core body temperature of 105°F (40.5°C) or more

Heat Stroke Treatment


While awaiting transport, begin cooling in a shaded/cool area

Loosen/remove tight clothing

Lay on your side since nausea/vomiting is common

Cool yourself rapidly using anything available

Your heat stress relief Solution

Kore Kooler Chair Logo image

The Kore Kooler Rehab Chair relieves heat stress symptoms through a cooling process called forearm immersion. Many blood vessels run through your arms and hands, close to the skin’s surface, making forearm immersion cooling an excellent method to reduce your core temperature safely.

Animation of How the Kore Kooler Chair Works image

How Does forearm immersion work?

using the Kore Kooler Rehab Chair

Fill the arm water reservoirs with ambient temperature (50-86°F/ 10-30°C ) water. Ice water is not recommended and may initiate shock.

Place your arms and hands in the water reservoirs. Sit back, relax, and let forearm immersion work its magic.

Heat transfers from the blood vessels in your hot arms/hands to the cooler water in the reservoirs.

Cooled blood returns to your heart and pumps throughout the body, picking up more heat for subsequent removal.

The cycle continues and works quickly and safely to minimize the potential for continued core temperature rise.

Kore Kooler Shop

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360 degree view of the Kore Kooler Chair image

Kore Kooler Rehab Chair

SKU: RH2001

Lower your body temperature through forearm immersion with this cooling chair. The sling construction of the chair provides a hammock effect for support and relaxation. The attached armrest flaps cover water reservoirs when not in use.


Chair dimensions (when set up): 29″L x 30″W x 40″H

Seat height: 16″

Chair weight: 11 lb.

Weight limit: 300 lb.

Additional Contents


Kore Kooler Chair Arm Bags image

Replacement Reservoir Bags

SKU: #RH2002

Quantity of 30 replacement bags for the Kore Kooler Rehab Chair. Specially sized for chair’s arm reservoirs.

Kore Kooler Chair Headrest image

Replacement Headrest

SKU: #RH1999

Replacement head cushion for the Kore Kooler Rehab Chair that attaches with an elastic band.

Contact Us

Have questions about the Kore Kooler Rehab Chair? We’re here to help!


Industrial Sales Manager

“We used [the Kore Kooler Chair] on a job, and my boss fell in love with it. He even took it for his little girl to use at a softball tournament.”