Cylinder Self-contained Air Breathing Apparatus a. The atmosphere is polluted by smoke、poisonous gas or/and hot vapor，or in the hypoxygen situation b. In the atmosphere of －30℃～＋60℃，at 0～100％ relative humidity and 70kpa～125kpa atmosphere pressure.

Pump long tube air breathing respirator uses the small compressor to provide the filtered fresh air to the user through compression, separation,filtration.It is used to protect the safety of human’s respiratory system.

Electronic air hose long tube air breathing apparatus is a safe protective equipment which can protect human respiratory system when working in the dusty workplace.The mini blower can provide the fresh air to the user through the long tube.