The NT 80/1 B1 MS safety vacuum cleaner avoid the risk of possible dust explosions caused by gunpowder or black powder.
In addition combustible dusts and category M hazardous dust have to be vacuumed away immediately since it is risky if they deposit.
For vacuuming such dusts a B1 proofed safety vacuum cleaner like the NT 80/1 B1 MS is needed (European approval of 94/9 EC (ATTEX)).
