SCAN TWIN HALF MASK RESPIRATOR A1 REFILL CARTRIDGES Supplied with pack of 2 A1 Cartridges for organic vapours & gases Conforms to EN1401998 & EN143872004 Low resistance exhalation valve for easy breathing Manufactured from hypoallergenic thermoplastic rubber Wide adjustable elastic strap for a perfect fit Durable thermoplastic rubber mask for superior fit to most face shapes Low profile angular filter design for minimum visual impairment Fully adjustable four point cradle suspension ensuring an effective fit