The constant-flow long-tube respirator
uses compressed air as the air source and is designed to provide breathing air into the breathing mask according to demand, and to always maintain a light
positive pressure in the mask. Respiratory equipmentbr/> It consists of a mask, breathing tube, belt, demand and supply valve, and quick connector
The product is approved by the American Institute of Occupational Safety and Health and the Mine Safety and Health Administration
Long tube respirator A506417