Come and see our amazing products. Equipped with a one-way filter valve, in case of emergency, rescue workers against the barrier role. A transparent mask helps the rescuers observe the color and vomit of the patient's lips. Oxygen can be supplied to the patient if necessary. The face mask is easy to clean and can be reused; check valves are disposable. The mask can be connected with the recovery device after removing the one-way valve. The face mask material meets the requirements of the ISO10993 medical device biological evaluation, and all parts are free of latex.Your logo is available. Pls confirm with us about the packing info, stock color and exact production time before placing your order.