3MK Antibacterial helmets are providing protection against liquid and fine dust particles – gas, aerosol, smoke, dust smaller than 5 μm. These masks are made from material, which is entirely impermeable. The thickness of this material is 0.16 mm, so it has resistance to the mentioned particles for up to 6 hours. The strap of this mask is made of plastic - it can be easily adjusted to the size of the user's head. Also, the material of these masks has ROHS and PZH (Polish health organization) certificate.

After purchasing the mask, it is up to the buyer to collect it, and the assembly instructions can be found

material is impermeable; Thick of material is 0,16mm; Material is resistant in scale Wolfa Wilburn 6h; Material is not replaceable; Band is made with plastic – adjustable to the size of the head;Mask have to be assembled by customer; Material have ROHS and PZH (Polish health organisation) certificate