using in proventing against CO when the fire and gas explotion take place in mine. the self-rescuers with smoke filter can filte

Techenical index:

gas life:60min

air flow:85L/min

Inhalation resistance:≤880Pa

Smoke filtering efficiency:≥50%

Application:

using in proventing against CO when the fire and gas explotion take place in mine. the self-rescuers with smoke filter can filte