Special Ops Series Particulate Respirators• Solid black colour stays cleaner looking longer to prevent premature disposal • HandyStrap® with buckle • Stretch cloth strap feels cool and comfortable against the skin • Contoured nose bridge with soft foam nose cushion • NIOSH approved N95 Available in Standard 15 / Box , with Ventex Valve, or with Ventex Valve plus Nuisance Vapour Relief come 10 / Box