3.25.10. Cleaning: When the work area and equipment are being cleaned, it is prohibited to use work methods that may cause dust from materials presumed to contain or containing crystalline silica to become suspended in the air, such as dry sweeping or the use of compressed air.
Cleaning must be carried out by means of wetting or using a vacuum cleaner equipped with a high-efficiency filter.
820-2023O.C. 820-2023, s. 41.