The employer shall ensure that the collective protection and personal protection equipment is maintained and renewed in such a way as to guarantee the lowest possible level of dust for the duration of the operation and, in any event, in accordance with the level indicated in the document provided for in Article R. 4412-99.
An order of the Minister responsible for work determines the conditions for the selection, maintenance and periodic inspection of :
1° Means of collective protection ;
2° Individual protection equipment.