The National Institute for Occupational Safety and Health and OSHA have collaborated to update OSHA’s original Heat Safety Tool. The updated app, available for both Android and iPhone, provides a clearer user interface, while still providing the same information to help keep workers safe when working outdoors in hot weather. Extreme heat causes more deaths than any other weather-related hazard; each year more than 65,000 people seek medical treatment for extreme heat exposure.

Employers should encourage workers exposed to hot and humid conditions to use the app to check the heat index and relevant protective measures. The app displays the heat index in the user’s location and shows the current risk level. The app also forecasts the hourly heat index throughout the entire workday, giving employers information they can use to adjust the work environment as needed to protect workers.

More than 450,000 users have downloaded the original app since it was launched in 2011. The original OSHA app will no longer function after September 30. To download the updated app and get more information on OSHA’s efforts to help protect workers from the heat, visit the heat campaign webpage.