PSM can filtering toxic smoke but not supply extra Oxygen, escape from fire immediately after putting on.
PSM is to help you emergency escape from the fire, not used for firefighting.
PSM and its components are highly fire resistance but not fireproof.
If PSM is exposed for more than 20 minutes, it is no longer efficient.
The efficiency of PSM against all types of contaminants cannot be pre-determined. It is therefore important to leave the danger area as quickly as possible.
PSM is vacuum packed to protect and ensure optimum efficiency of the filter layer. The efficacy of the layer diminishes when exposed to the atmosphere.
