The NT 80/1 B1 M safety vacuum cleaner avoid the risk of possible dust explosions.
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 M is needed (European approval of 94/9 EC (ATTEX)).
