Fully UK certified to EN149:2001 +A1:2009.Adjustable nose bridge with foam seal.Colour co-ordinated straps for easy workplace identification.Space saving fold flat design and individual packaging.Available in a valved version ONLY to reduce heat build up within the mask for greater worker acceptance.A premium mask for more demanding applications.This valved version with activated carbon helps absorb smells and odours (below the OEL)