JSP04-5209 positive pressure fan (dustproof)

JSP04-5209 positive pressure fan (dust-proof)
principle: air is sucked in by the motor, filtered, and then sent to the top of the head through the elastic hose.
Composition: motor (rechargeable), belt, filter box, hood (with hose)
Air flow: 140L /M, maximum 180L/M
weight: belt and motor total 765g
use time: 4H/8H
additional helmet: 5 types, to meet different environmental needs
through the European BSEN12941: 1999Th2 standard series, suitable for filtering dust and organic gas, not suitable for lack of Oxygen environment (oxygen content less than 18%)