About the productDescriptionprofessional designthe gas masks survival nuclear and chemical adopt highquality silicone comfortable soft and safe material adjustable headband design firm and elastic the gas mask fits most peoplesafe u efficientthe large view face screen of the respirator mask is designed with antifog antiscratch and impact resistance the full face respirator mask have talking diaphragm and exhalation valve to ensure air circulation and convenient communication40mm filterthe gas masks survival nuclear and chemical is equipped with a 40mm activated carbon filter effective filtering chemicals gases paint organic steam dust particulate matter and so on 40mm activated carbon filter provides strong filtrationwidely usedthe gas mask filters the air and gives you safe air the gas mask is often used to chemicals industrial emergency laboratory woodworking spray paint sanding machining welding epoxy resin cleaning polishing etcexcellent serviceprofessional team excellent service if you need any assistance from us please feel free to contact us we will be the first time to provide you with help and satisfactory service package includes 1x full face respirator mask 1x 40mm activated carbon filter