Emergency Escape & Firemen Fire Oxygen Mask / Toxic Filter. Features: *The FIREMASK is Respiratory Protective Device for Protection Against Smoke,   Carbon Monoxide (CO), Hydrogen Sulfide, Ammonia, Toxic Gases, Fire, and Radiant Heat. *Fire Gas Mask Will Give You Half An Hour of Breathable Air when You Need It Most Critically. *Neoprene Band Adapts to Small And Large Necks,poly Carbonate Visor Ensures Clear Visibility. *Conform to GB Standard for Air-Purifying Respiratory Protective Smoke Escape Devices. *Uniquely Designed to Make It Possible to Securely Put on the Mask in Less Than 30 Seconds,  making Sure You Can Be in Control Even when a Fire is Getting out of Control. *Apply in Home Dusting,paint, Chemicals, Polish, Pesticides Protection Chemical Laboratory, Construction,fire Inspection Equipment, Petroleum, Mining, Metallurgy,  military,fire Fighting,disaster Relief, Health and Epidemic Prevention and Environmental Technology. *Can Be Wall Mounted in Strategic Locations, Convenient and Fast to Use when Be in Danger. Specifications: Material: High Quality Aluminum Foil Style: Headset-full Face Breathing Tube Means: Yes Service Life: 30 Minutes Object of Protection: Carbon Monoxide(CO), Hydrogen Cyanide(HCN), Hydrogen Chloride(HCI), Poison Smoke and Fog. Fog Permeability Coefficient: <5% Inhalation Resistance: <800Pa Exhalation Resistance: <300Pa Standard: GB Color: Gray Package Included 1* Gas Mask . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.