There are those tyes of n 100 with exhaust fans they work in -30 and make breathing less strenuous expecially when doing heavy work. They are made in Singapore, used by WHO for ebola and other out breaks. I knew someone on design team so got to stress test in cold for them here.
One should really have 3 kinds of mask,dust, half and full. If only one a good cbrn full face mask with spare cartridges. Make sure to get removable plastic face plate see through covers to extend the plexiglass glass life by protection from scratches. Get kind with mesh net for back of head way more comfortable. Get silicone not rubber.
Half face mask and full face should be fitted as one size does not fit all. If you have them on shelf and need to access quickly mark with color ribbon so you get right size,wrong fit can be dangerous depending on contamination.
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This reply was modified 1 year, 3 months ago by
namelus.
