Delta Plus FFP3 welding fume charcoal folding valved mask (pack 10) #M1305VWNon woven active charcoal synthetic fibre disposable single use masks (also protects against nuisance odours such as welding fumes WILL NOT PROTECT AGAINST VAPOURS). Manufactured with four foldable parts so will fit most face sizes and shapes. Nose clip for correct fitting, with a foam edge under clip for increased comfort. High performance exhalation valve to limit breathing resistance and increases wearers comfort allowing all day use. Supplied