HEPA filters - replace or reuse?

[mark_m]

@Hillsgal

P95 masks were unavailable for many months due to

NIOSH - P95 ?

Masks most commonly available are rated:

NIOSH - N95, N99, N100
Or
P1, P2, P3 Australian/New Zealand Standard AS/ NZS 1716 :2012

Yes, there is a P95. They are the same particulate rating as a N95, but more expensive. They are strongly oil resistant. More suitable where there are chemical droplets in the atmosphere that can damage the mask.

If you need 24x7 protection the ‘Smart Mask’ revolution is under way. Whether they are worth the investment?

Face mask testing

HEPA Filter, Air Purifier, Air Quality Monitor, Covid Safe, and Face Mask I’m half convinced that this is more than just a face mask. Wear one all the time, and you might not need any of the other listed devices? Really! Why didn’t we think of this sooner? Likely a niche market for now? Fire fighters, miners and others have long had access to breathing and safety systems that keep dust and fumes out while providing filtered clean air. Is Choice able to source and review some of these…