The CityT Filter uses Dynamic Activated Charcoal Cloth (DACC) a 95% pure charcoal weave, developed originally by the UK ministry of defence for use as a protection against chemical and bacterial warfare situations. DACCT is laminated with medical grade non-woven polypropylene material which filters particulates from the air and helps prevent them from entering the respiratory system.
. CityT Filter Twin Pack: contains two replacement filters for use in the Respro CityT Mask