SDP Positive Pressure Compressed-air Breathing Apparatus is a kind of isolated breathing protection apparatus. It provides breathing protection for users in the environment filled with poisonous air or lacking in oxygen. When it is used normally, the pressure inside the veil is always higher than the outside environment. It prevents the poisonous air from entering the veil, so as to protect the users. This product can be used in fire fighting, petroleum, chemical, metallurgy and electric power industry and so on. Standard: according with GA124-2004 Positive Pressure Compressed-air Breathing Apparatus standard.

Cylinders Capacity	Cylinders Working Pressure	supply air Max amount	Breathing Resistance		Alarming Pressure	Weight	Service Lifetime
			exhalation	inspiration
3.0L	≤30MPa	≥1000L/min	≤1000Pa	≤500Pa	5.5±0.5M Pa	6.2KG	30 minutes
4.7L	≤30MPa	≥1000L/min	≤1000Pa	≤500Pa	5.5±0.5M Pa	7.1KG	47 minutes
6.0L	≤30MPa	≥1000L/min	≤1000Pa	≤500Pa	5.5±0.5M Pa	13.1KG	60 minutes
6.8L	≤30MPa	≥1000L/min	≤1000Pa	≤500Pa	5.5±0.5M Pa	7.5KG	68 minutes
9.0L	≤30MPa	≥1000L/min	≤1000Pa	≤500Pa	5.5±0.5M Pa	9.1KG	90 minutes