Heat Illness Prevention

Heat Illness General Education

There are a range of heat illnesses that can affect anyone, regardless of age or physical condition.



Heat-related illnesses can be prevented. Prevention requires employers and workers to recognize heat hazards.

Planning and Supervision

COVID-19 Guidance on the Use of Cloth Face Coverings while Working Outdoors or Indoors in Hot and Humid Conditions. OSHA (September 2020).

Protecting Workers from the Effects of Heat Fact Sheet (PDF)

OSHA-NIOSH Heat Safety Tool Smartphone App iPhoneAndroid


First Aid and Emergency Response

Employers and workers should become familiar with the symptoms of heat illness. When any of these symptoms are present, promptly provide first aid.

Heat Related Illness and First Aid


Industry-Specific Information

Maritime - Protecting Workers from Heat Illness in Confined Spaces (PDF)

Read real-life examples of industries where workers have suffered heat-related illnesses and see the lessons learned.

Outdoor and Indoor Heat Environments

Case Studies

Mining: Prevent Heat Illness at Work Poster (PDF) Español (PDF)

Heat Safety for Mines Infographic (ZIP) Español (ZIP)