For acclimatization to heat, how long should an employee work for two hours per day during the initial period?

Acclimatization to heat is a crucial process that helps workers adapt to hot environments, reducing the risk of heat-related illnesses. When initially exposed to hot conditions, employees should gradually increase their work duration in those conditions to safely adapt.

Typically, a recommended acclimatization schedule suggests that employees start with shorter work periods in the heat, generally about two hours per day, allowing the body to adjust without undue stress. The process of acclimatization generally takes about 7 to 14 days. This gradual exposure helps the body develop physiological adaptations such as increased sweat rate and improved cardiovascular stability, promoting better performance and safety in hot environments.

Opting for two weeks allows for a more comprehensive adaptation period, as it encompasses a sufficient duration for the various physiological changes that occur. It not only mitigates the risk of heat-related illness but also enhances the worker's ability to tolerate heat stress effectively. Therefore, the duration of two weeks is consistent with established guidelines in occupational health and safety practices.