Heat Illness Prevention

Responding to Heat Illness

Know what to do to prevent heat illness to stay safe.

Tips for Preventing Heat Illness

Heat-related illnesses can be prevented.

• Hydrate before, during and after work. Dehydration can affect work performance. It is important to drink water throughout your work shift, even if you’re not feeling thirsty. When you’re working hard and sweating in the heat, you may need up to 32 oz of water per hour. For longer jobs, drinks with electrolytes are best. Avoid high-sugar and high-caffeine energy drinks and alcohol.
• Find shade or a cool area for rest breaks that allow your body to recover.
• Dress for the heat. A hat and light-colored, loose-fitting (where allowed), breathable clothing are ideal.
• If wearing a face covering, change it if it becomes wet or soiled. Check on others verbally often.
• Not everyone tolerates heat the same way. Understand personal risk factors.
• Understanding engineering controls, work practices, and PPE.

Know the Signs of Heat Illness and How to Respond

Abnormal thinking or behavior, slurred speech, seizures or loss of consciousness are signs of a medical emergency. Call 911 immediately, cool the worker with water or ice and stay with them until help arrives.

• Heat illness can cause:
  • Headaches
  • Nausea
  • Weakness or dizziness
  • Heavy sweating or hot, dry skin
  • Elevated body temperature
  • Thirst
  • Cramps
  • Decreased urine output
• If you spot someone experiencing the signs above, take action:
  • Give them water to drink
  • Move them to a cooler area
  • Cool them with water, ice or a fan
  • Remove unnecessary clothing
  • Do not leave them alone
  • If in doubt, call 911 or seek medical care
• Get more tips on first aid so you can be prepared in the event of an emergency.