What is a requirement for indoor temperatures for physically active workers?

For physically active workers, the minimum temperature requirement is set to ensure their comfort and safety while performing tasks that generate more body heat. The recommended minimum temperature of 13 degrees Celsius acknowledges that these workers are likely to produce excess heat due to their activity levels. If the temperature is too low, it can lead to decreased performance, increased risk of cold-related illnesses, and general discomfort, which can affect overall productivity and safety in the workplace. Maintaining an appropriate thermal environment is essential to support both the well-being and efficiency of physically active workers.