Positive pressure air breathing apparatus for firefighting
A respirator and fire-fighting technology, applied in the direction of respiratory protection devices, life-saving equipment, etc., to ensure normal air supply, ensure stable delivery, and improve the use time
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] see Figure 1-3 , a positive pressure air respirator for fire fighting, comprising a pressure reducer body 1, the inside of the pressure reducer body 1 is provided with a high-pressure chamber 101, a ventilation groove 107 and a low-pressure chamber 102, and the high-pressure chamber 101 and the low-pressure chamber The chamber 102 is connected through the ventilation groove 107. The pressure reducer body 1 is provided with an introduction groove 103 co...
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