2pcs Electric Constant Flow Air Supplied Fed Respirator Half Face Gas Mask Pump 2 Pipe Respirator Respirator-System-Device Gas. Material: silicone mask + plastic pump + rag Rubber tube color: color tube Interface: R40 charging Time: 3 hours work Time: 7-9 hours air supply Flow rate: First gear: 62 liters/minute Second gear: 74 liters/minute Motor design life:? 5000H charger Output voltage: DC12.6vCharger Input voltage: AC 100-240V 50/60Hz Mask size: (L)X(W) 13.5X9.5cm /5.31″X3.74″appr. Charger plug: American plug (we will send the corresponding adapter plug according to your country). Brand New and high quality. Adjustable air flow? Lightweight and portable mask? Long time and low noise working? Especially suitable for users who wear glasses for a long time? Effectively protects the wearer’s respiratory tract from poisons and dust? For use by people in different fields such as industry, agriculture, teams and scientific research. 2 X gas mask 1 X air pump 2 X air pipe 1 charger 2 X cans. Before ordering please check size chart for accurate fit. Colors may vary slightly due to lighting, screen settings, or viewing conditions. We are committed to resolving your concerns promptly and ensuring your satisfaction. We are sure that we can provide a solution that makes you satisfied. We usually respond within 24 hours on weekdays. Thank you for shopping with us!