Section 1: Principles and definitions

In enclosed premises where workers are required to stay, the air is renewed in such a way as to : 1° Maintain a state of purity in the atmosphere that is conducive to the health of workers; 2° Avoid excessive temperature rises, unpleasant odours and condensation.

The rules applicable to the aeration, ventilation and sanitation of premises are laid down according to the nature and characteristics of these premises.

For the purposes of this chapter, the following definitions apply 1° Fresh air: air taken from the open air away from sources of pollution; 2° Recycled air: air taken and reintroduced into a room or group of rooms. Air taken outside pollutant collection points and reintroduced into the same room after thermal conditioning is not considered to be recycled air; 3° Non-specific pollution rooms, rooms in which pollution is linked…