The BLS Wide range of filters are designed for dust, gases and combined protection, to be used with BLS 4000next series half masks and BLS 5000 series full face masks. They are highly efficient, easy to use and highly secure. Standards = EN 143:2000 + A1:2006 et EN 14387:2004 + A1:2008
Activated carbons Made of non deformable ABS CE marked Filtering efficiency is 99.99 percent Guarantee protection from formaldehyde