Skip to main content

May we suggest another browser?

Sorry Charlie, Internet Explorer isn't supported by our site. We want you to get the full experience, so please try again on on of the following browsers: Chrome, Firefox, Safari, Edge.

Continue to Website on Internet Explorer »

Secondary Nav

    • About Ergodyne
    • Sustainability
    • Careers
    • Newsroom
    • Giving
    • Patents
    • Trademarks
    • Email Sign Up
    • Tenacious Testers
  • Blog
  • Sustainability
    • Contact Information
    • U.S. Sales Map

800-225-8238

Ergodyne: Tenacious Work Gear. Established 1983.
Ergodyne®: Tenacious Work Gear. Established 1983.

User account menu

  • Quick Order
  • indicates a required field

    Reset password

    By signing into your account, you agree to Ergodyne's Terms of Use and acknowledge you have read its Privacy Policy.

    Create a Basic User Account
    Register as a Distributor
    • Create new account
    • Reset your password
      • Anti-Vibration
      • Cut-Resistant
      • Coated
      • Dorsal Impact-Reducing
      • Trades
      • Thermal
      • Glove Clips
      • View All Gloves
      • Gel
      • Standard
      • Kneeling Pads
      • View All Knee Pads
      • Back Supports
      • Wraps & Sleeves
      • Wrist Supports
      • View All Supports
      • Vests - Class 1 & Non-Cert
      • Vests - Class 2
      • Vests - Class 3
      • FR Vests - Class 2 & 3
      • Vests - Public Safety
      • Shirts & Sweatshirts
      • Jackets
      • Pants, Bibs & Gaiters
      • Headwear & Accessories
      • Rainwear
      • View All Hi-Vis
      • Hard Hats & Safety Helmets
      • Hard Hat & Safety Helmet Accessories
      • Bump Caps
      • Face Coverings
      • View All Head & Face Protection
      • Safety Glasses & Goggles
      • Eyewear Accessories
      • View All Eye Protection
      • Ladder Carriers & Handles
      • Harnesses & Slings
      • Holsters & Mounts
      • View All Mobile Device Solutions
      • Anchor & Tool Attachments
      • Bags & Pouches
      • Glove Clips
      • Hoist Buckets
      • ID Badge Holders
      • Retractable Tool Lanyards
      • Tool Lanyards
      • Tool Tethering Kits
      • View All Tool Tethering & Dropped Objects Safety
      • Aprons
      • Backpacks
      • Duffel & Rolling Bags
      • Fire Turnout Bags
      • Respirator Bags
      • Responder & EMS Bags
      • Tool Belts & Pouches
      • Tool Organizers
      • Tool Roll Ups
      • View All Storage & Organization
      • Hard Hat & Safety Helmet Accessories
      • Hats, Headbands & Gaiters
      • Hydration Packs, Coolers & Bottles
      • Jobsite Fans
      • Shirts & Sleeves
      • Towels
      • Vests
      • View All Cooling
      • Sunscreen
      • Pop-Up
      • Shelter Accessories
      • Umbrella
      • View All Shelters
      • Balaclavas
      • Clothing
      • Gloves
      • Hard Hat Liners
      • Hats, Headbands & Gaiters
      • Warming Accessories
      • View All Warming
      • Ice Cleats
      • Indoor & Outdoor Traction
      • View All Traction
      • New Products
      • Closeouts
      • Custom Logo
      • Tenacious Goods
        • Aviation
        • Cold Storage
        • Warehousing, Distribution & Retail Operations
        • Cut & Slash
        • Falling Objects
        • Cold Stress
        • Heat Stress
        • Arc Flash & Flash Fire
  • New
      • Towels
      • Jobsite Fans
      • Shirts & Sleeves
      • Vests
      • Hats, Headbands & Gaiters
      • Hard Hat Accessories
      • Hydration Packs, Coolers & Bottles
      • View All Cooling
      • Sunscreen
      • View All Skin Protection
      • Pop-Up
      • Umbrella
      • Shelter Accessories
      • View All Shelters
      • Anti-Vibration
      • Coated
      • Cut-Resistant
      • Dorsal Impact-Reducing
      • Trades
      • Thermal
      • Glove Clips
      • View All Gloves
      • Anchor & Tool Attachments
      • Bags & Pouches
      • Glove Clips
      • Hoist Buckets
      • ID Badge Holders
      • Retractable Tool Lanyards
      • Tool Lanyards
      • Tool Tethering Kits
      • View All Tool Tethering & Dropped Objects Safety
      • Hard Hats & Safety Helmets
      • Hard Hat & Safety Helmet Accessories
      • Bump Caps
      • Face Coverings
      • View All Head & Face Protection
      • Safety Glasses & Goggles
      • Eyewear Accessories
      • View All Eye Protection
      • Vests - Class 1 & Non-Cert
      • Vests - Class 2
      • Vests - Class 3
      • FR Vests - Class 2 & 3
      • Vests - Public Safety
      • Shirts & Sweatshirts
      • Jackets
      • Pants, Bibs, Gaiters
      • Headwear & Accessories
      • Rainwear
      • View All Hi-Vis
      • Chill-Its Cooling
      • ProFlex Gloves
      • Skullerz Eyewear
      • Skullerz Hard Hats
      • Cold Stress
      • Dropped & Falling Objects
      • Hand-Arm Vibration Syndrome
      • Heat Stress
      • Low Visibility & Struck-By
      • Brochure/Flyer
      • Catalog/Handbook
      • View All Documents
      • How To
      • Products
      • Experts
      • View All Videos
      • Case Studies
      • Safety Tips
      • Standards/Compliance
      • Toolbox Talks
      • View All Blog Articles
      • View All Podcast Episodes
    View All Resources

HEAT STRESS SAFETY

PREVENTING HEAT-RELATED ILLNESSES AND INJURIES

  • Heat Stress Overview
  • National Emphasis Program and OSHA
  • Heat Stress Solutions
  • Resources

How Heat Stress Happens

  1. Body’s means of controlling its internal temperature starts to fail
  2. Once body temps reach 99.7°F (37.6°C), heat stress has begun to affect the body
  3. Severe illness occurs when body temperature reaches 104°F (40°C)
Thermometer
Silhouette of person showing different hot temperature zones

Confusion

Headaches, Mood Change

Feeling Sick

Pale and/or Clammy Skin

Painful Spasms

Weakness

Painful Spasms

Red blisters, bumps, itching

Signs of heat stress, common heat-related illness & suggested treatments

What does heat stress do to the body? Keep an eye out for these major symptoms and know how to treat them.

Heat Rash

How it happens: Sweat ducts become clogged and sweat can’t get to the surface of the skin

How to treat it: Keep the skin dry and rest in a cool place

Heat Cramps

How it happens: Salt and moisture levels are depleted through excessive perspiration

How to treat it: Move to a cool, shaded area, apply something cool, drink plenty of fluids

Heat Exhaustion

How it happens: Prolonged exposure to high temps and poor hydration

How to treat it: Move to a cool, shaded area, apply something cool, drink fluids and monitor

Heat Stroke

How it happens: When the body becomes unable to control its core body temperature

How to treat it: Seek medical attention immediately

Hazardous heat can impair job tasks related to complex cognitive function and also reduce decision-making abilities and productivity. Additionally, a growing body of evidence has demonstrated that these heat-induced impairments may result in significant occupational injuries that are not currently factored into assessments of the health hazards resulting from occupational heat exposure.

Heat Injury and Illness Prevention in Outdoor and Indoor Work, Occupational Safety and Health Administration (OSHA)

OSHA Heat Stress Standards

OSHA’s National Emphasis Program (NEP) for Heat is the agency’s first nationwide enforcement measure to protect millions of outdoor and indoor workers from the increasing threat of heat-related illness.

In September of 2021, the US Department of Labor announced enhanced, expanded measures to protect workers from hazards of extreme heat, including the deployment of a National Emphasis Program (NEP).

GET NEP FACT SHEET >>

WHAT IS THE NEP FOR HEAT-RELATED ILLNESS?

In September of 2021, the US Department of Labor announced enhanced, expanded measures to protect workers from hazards of extreme heat, including the deployment of a National Emphasis Program (NEP).

UNDERSTANDING OSHA'S NATIONAL EMPHASIS PROGRAM FOR HEAT STRESS

Preventing Heat Stress In The Workplace: What OSHA Suggests

Get to know the simple yet crucial elements guiding the agency's efforts to protect workers from the heat.

The basics as prescribed by OSHA

From OSHA's mouth to your ears. These three words have long been the agency's straightforward prescription for safety in the swelter.

Current. Water bottle

WATER

Seated person

REST

Umbrella blocking the sun

SHADE

A worker drinking water from a Chill-Its 5151 Water Bottle and wearing a Chill-Its 8939 Cooling Bucket Hat
Current. Water bottle
Seated person
Umbrella blocking the sun

Water

Workers must have access to fresh, pure and suitably cool water at all times, which means the water needs to be cooler than ambient air.

Ways to Hydrate
View all hydration solutions
Water bottle 
Current. Seated person
Umbrella blocking the sun 

Rest

More frequent and shorter periods of heat exposure are better than fewer, longer exposures. New employees and those returning from long absences should be especially mindful of work to rest ratio.

A worker sitting on scaffolding and taking a break on a hot day.
Rest Station Essentials
View All Cooling
Workers underneath the shade of a Shax Pop-Up Tent, and grabbing cold water bottles from a Chill-Its 5171 cooler
Water bottle 
Seated person 
Current. Umbrella blocking the sun

Shade

Workers in high heat conditions need a place that will block the direct sunlight and give them a place to rest, get hydrated and keep cool.

Portable Shade Solutions
View all portable work shelters

Go Beyond Water, Rest, Shade

How to Build a Heat Stress Rest & Prevention Station to Keep Workers Safe

Heat Stress Cooling Solutions: Beyond Water, Rest, Shade

Get to know the simple yet crucial elements guiding the agency's efforts to protect workers from the heat.

“Body cooling is one of the most underutilized strategies. If [workers] have some sort of body cooling such as vests... that is going to be huge [in helping] them tolerate the heat.”

Maggie Morrissey, Director, Korey Stringer Institute, Laborer Division via Radio Free Tenacity Podcast

Femme presenting person wearing a Chill-It's 6667 Cooling Vest under their safety vest

You Need Coolin’

Along with the biggies of water, rest and shade, experts recommend cooling PPE as a simple way to maintain safe body and skin temps throughout the shift.

How To Use PPE with Evaporative and Phase Change Cooling Technologies to Prevent Heat Stress

What Cooling Gear is Right for Me?

Water droplets

WET EVAPORATIVE COOLING

Dry breeze blowing in the air

DRY EVAPORATIVE COOLING

Ice cubes melting

PHASE CHANGE COOLING

Learn about the difference between cooling technologies

The King of Cool

By proclamation of the noble patrons of the worksite realm, let it be known far and wide: others may dabble, but we, purveyors of the finest protective gear in all the land, have ascended to the throne with a heat stress selection that reigns supreme.

Two cooling towels

Cooling Towels

Feeling like a human salt lick? Instantly transform sweat and water into hours of sweet cooling relief. It’s not magic, it’s science!

Cooling neck gaiter and hat

Cooling Hats, Headbands & Gaiters

Sop up sweat to turn hot n’ bothered into heat-beating happiness—because keeping your cool (and keeping perspiration out of your eyes) is not only smart, it’s safe.

Cooling hard hat accessories

Cooling Hard Hat Accessories

Tell hard hat heat to take a hike. Integration-ready cooling liners and sweatbands prove that cool and compliant don’t have to be mutually exclusive.

Chill-Its cooling shirt and sleeves

Cooling Shirts & Sleeves

Cover up, cool down and work smart in our cooling shirts and sleeves—the frostiest fashion statement under the sun.

Two cooling vests

Cooling Vests

When the gig flips you from frying pan to fire, cooling vests deploy advanced tech to keep you cool to the core.

Cooler and hydration pack

Hydration Backpacks, Coolers & Bottles

Industrial coolers, hydration packs and water bottles for a convenient source of cool, clean refreshment that encourages crews to keep on chuggin’.

Chill-Its Jobsite Fan

Jobsite Fans

Rechargeable, portable and powerful jobsite fans put a hit of sweet relief right where you need it...ahhhh...feel that? Glorious.

Heat Stress Training & Resources

Carelessness, machismo and misinformation are at the center of thousands of heat-related injuries every year. The good news? They’re 100% preventable with a little training, planning and common sense.

Podcast

VIEW TRANSCRIPT
// View Video
VIEW TRANSCRIPT
// View Video
VIEW TRANSCRIPT
// View Video
View All Podcast Episodes

Heat Stress Videos

View full transcript ▶
Does Cooling PPE Work Indoors?
View full transcript ▶
The TACO Method: Life-Saving Heat Relief
View full transcript ▶
Understanding OSHA's National Emphasis Program for Heat Stress
View All Heat Stress Videos

Heat Stress Blog Articles

People covering unconscious person with ice

Responding to Heat Stroke: Quick Action with the T.A.C.O. Method

Heat stroke is a life-threatening condition that can escalate rapidly.
Worker pouring water on Ergodyne cooling sleeves. Red dots along the wrist and finger tips to indicate pulse points

Pulse Points: Your Hot Spots For Cooling Relief

Did you know your body comes with a nifty, built-in heat stress hack? Yup. When the world goes volcanic, you've got a trick up your (cooling) sleeve, thanks to a few strategic spots known as pulse points.
Two workers on a construction site. One is wearing an evaporative cooling product, the other is wearing a moisture-wicking cooling product

Evaporative vs. Moisture-Wicking Cooling: Which One Works for You?

With so many “cooling” wearable options out there, it can feel overwhelming to choose the cooling products that work for you, your environment and your needs. So, how do you know which one is right for you?
Workers taking a break beneath a tent

OSHA Heat Stress Standard: An Overview of OSHA’s National Emphasis Program for Heat-Related Illnesses

OSHA’s National Emphasis Program for Outdoor and Indoor Heat-Related Hazards was recently launched with the goal of protecting millions of workers from heat-related illness. Here’s what it means for you.
Worker resting under umbrella

Preventing Heat Stress at Work: Your Guide to Heat Stress Risks & Solutions

Weather patterns are changing. The planet’s getting warmer. Since the 1980s, each decade has been hotter than the last—with the warmest seven years on record all occurring since 2015. To best protect your crew against the rising risk of heat stress, it’s critical to better understand heat-related illnesses, warning signs and solutions for mitigating them.
man wearing cooling hat

Covering Up + Staying Cool In the Heat

Worksite sizzling in the sun? Learn how to properly prepare & properly dress before taking on the scorching jobsite.
View All Heat Stress Blog Articles

Heat Stress Toolbox Talks

Heat Stress Tool Box Talks Water

How to Prevent Dehydration in the Heat - Toolbox Talks

In 2014, OSHA kicked off an annual campaign to train and educate workers about heat stress management called Water. Rest. Shade. Use this Toolbox Talk to brief workers on the signs/symptoms of dehydration, as well as effective hydration strategies.
Heat Stress Tool Box Talks Intro

Warning Signs and Symptoms of Heat-Related Illness – Toolbox Talks

If it seems like summers have been getting hotter and more extreme, you’re right. On average, summers over the past decade have been hotter on average and bring more heat waves with temperatures that fall into the “extremely hot” category. This presents a challenge for you as you look to keep your workers safe in extreme weather.
Heat Stress Tool Box Talks Shade

Why Shaded Areas are Important For Breaks at Work - Toolbox Talks

In 2014, OSHA kicked off an annual campaign to train and educate workers about heat stress management called Water. Rest. Shade. Focused on shade, this Toolbox Talk can help you educate your crew on the importance of periodically seeking shelter from the sun during the workday.

Heat Stress Toolbox Talk Worksheets

ergodyne tool box talks heat stress pdf
May. 1, 2017
Toolbox Talks - Heat Stress: Identifying Heat Related Illnesses
ergodyne tool box talks heat stress beyond water rest shade rest focus pdf
Jun. 6, 2017
Toolbox Talks - Heat Stress: Beyond Water, Rest & Shade - Rest
ergodyne tool box talks heat stress beyond water rest shade shade focus pdf
Jun. 12, 2017
Toolbox Talks - Heat Stress: Beyond Water, Rest & Shade - Shade
ergodyne tool box talks heat stress beyond water rest shade water focus pdf
May. 26, 2017
Toolbox Talks - Heat Stress: Beyond Water, Rest & Shade - Water

Heat Stress Guides & Documents

2023 wdro nep fact sheet pdf
Oct. 31, 2023
OSHA Warehousing & Distribution NEP - Fact Sheet
heat stress handbook pdf
Jan. 28, 2025
Heat Stress Handbook: Complete Cooling Catalog (99897)
heat stress card pdf
Jan. 17, 2025
2025 Heat Stress Solutions Card (99817)
heat stress essentials ergo pdf
Jun. 8, 2023
Heat Stress Essentials
ergodyne cooling vest selection tool pdf
Feb. 16, 2024
Chill-Its Cooling Vest Comparison Chart - Flyer
View All Heat Stress Guides & Documents

Heat Stress Freebies

heat stress poster pdf
Feb. 13, 2024
Heat Stress Poster: Outsmart the Swelter (99841)
Jun. 6, 2019
Hydration Education: Urine Charge (Sticker=90214, Magnet=90213)
Ergodyne: Tenacious Work Gear. Established 1983.


Since 1983, Ergodyne has pioneered the development of products that Make The Workplace A Betterplace.

What started with just one product has grown into a line of top flight, battle-tested, Tenacious Work Gear; all precision crafted to provide protection, promote prevention and manage the elements for workers on job sites the world over.

Categories

  • Gloves
  • Knee Pads
  • Supports
  • Hi-Vis
  • Head & Face Protection
  • Eye Protection
  • Gear & Tool Storage
  • Lanyards
  • Cooling
  • Skin Protection
  • Shelters
  • Warming
  • Traction

About

  • About Ergodyne
  • Sustainability
  • Careers
  • Newsroom
  • Giving
  • Patents
  • Trademarks

Collections

  • New Products
  • Closeouts
  • Custom Logo
  • Tenacious Goods

Support

  • Returns & Warranty
  • Shipping Info
  • Help & FAQs
  • Product Recalls
  • Contact Us
  • U.S. Sales Map

Distributor

  • Quick Order
  • Sign Into Your Account
  • Brand Style Guide
  • Register as a Distributor

Join

Subscribe to our newsletter, so that you can be the first to know about new offers and promotions.

Email Sign-up

Connect

  •   support@ergodyne.com
  •   800-225-8238
  •  
  •  
  •  
  •  
  •  

Copyright © Tenacious Holdings, Inc. (dba Ergodyne), a Klein Tools Company.

Footer - bottom menu

  • Sitemap
  • Privacy Policy
  • Terms
  • Accessibility

Mobile menu

Ergodyne logo Sign in
  • New Products
    • Cooling
    • Hard Hat Accessories
    • Hats, Headbands & Gaiters
    • Hydration Backpacks, Coolers & Bottles
    • Jobsite Fans
    • Shirts & Sleeves
    • Towels
    • Vests
    • View All Cooling
    • Shelters
    • Pop-up
    • Shelter Accessories
    • Umbrella
    • View All Shelters
    • Skin Protection
    • Sunscreen
    • View All Skin Protection
    • Gloves
    • Anti-Vibration
    • Cut-Resistant
    • Coated
    • Dorsal Impact-Reducing
    • Trades
    • Thermal
    • Glove Clips
    • View All Gloves
    • Tool Tethering & Dropped Objects Safety
    • Anchor & Tool Attachments
    • Bags & Pouches
    • Glove Clips
    • Hoist Buckets
    • ID Badge Holders
    • Retractable Tool Lanyards
    • Tool Lanyards
    • Tool Tethering Kits
    • View All Tool Tethering & Dropped Objects Safety
    • Head & Face Protection
    • Hard Hats & Safety Helmets
    • Hard Hat & Safety Helmet Accessories
    • Bump Caps
    • Face Coverings
    • View All Head & Face Protection
    • Eye Protection
    • Safety Glasses & Goggles
    • Eyewear Accessories
    • View all Eye Protection
    • Hi-Vis
    • Vests - Class 1 & Non-Cert
    • Vests - Class 2
    • Vests - Class 3
    • FR Vests - Class 2 & 3
    • Vests - Public Safety
    • Shirts & Sweatshirts
    • Jackets
    • Pants, Bibs & Gaiters
    • Headwear & Accessories
    • Rainwear
    • View All Hi-Vis
    • Mobile Device Solutions
    • Harnesses & Slings
    • Holsters & Mounts
    • View All Mobile Device Solutions
    • Carrying & Lifting Straps
    • Ladder Carriers & Handles
    • View All Carrying & Lifting Straps
    • Supports
    • Back Supports
    • Wrist Supports
    • Wraps & Sleeves
    • View All Supports
    • Knee Pads
    • Gel
    • Standard
    • Kneeling Pads
    • View All Knee Pads
    • Storage & Organization
    • Aprons
    • Backpacks
    • Duffel & Rolling Bags
    • Fire Turnout Bags
    • Respirator Bags
    • Responder & EMS Bags
    • Tool Belts & Pouches
    • Tool Organizers
    • Tool Roll Ups
    • View All Storage & Organization
    • Warming
    • Balaclavas
    • Clothing
    • Gloves
    • Hard Hat Liners
    • Hats, Headbands & Gaiters
    • Warming Accessories
    • View All Warming
    • Traction
    • Ice Cleats
    • Indoor & Outdoor Traction
    • View All Traction
    • New Products
    • Closeouts
    • Custom Logo
    • Tenacious Goods
    • Industries
    • Aviation
    • Cold Storage
    • Warehousing, Distribution & Retail Operations
    • Risks & Injuries
    • Arc Flash & Flash Fire
    • Cold Stress
    • Cut & Slash
    • Falling Objects
    • Heat Stress
    • Document Library
    • Brochure/Flyer
    • Catalog/Handbook
    • View All Documents
    • Video Library
    • How To
    • Products
    • Experts
    • View All Videos
    • Blog Library
    • Case Studies
    • Safety Tips
    • Standards/Compliance
    • Toolbox Talks
    • View All Blog Articles
    • Podcast
    • View All Podcast Episodes
    • Risks & Hazards
    • Cold Stress & Cold-Related Illnesses
    • Dropped & Falling Objects
    • Hand and Arm Vibration Syndrome
    • Heat Stress & Heat-Related Illnesses
    • Low Visibility & Struck-By Hazards
    • Technology
    • Chill-Its Cooling
    • Proflex Gloves
    • Skullerz Eyewear
    • Skullerz Hard Hats & Safety Helmets
    • About Ergodyne
    • Sustainability
    • Careers
    • Newsroom
    • Giving
    • Patents
    • Trademarks
    • Email Sign Up
    • Tenacious Testers
  • Sustainability
  • Blog
    • Contact Information
    • U.S. Sales Map