Question 1

With a P100 rating, why do you exclude asbestos under specific uses?

Accepted Answer

The US National Institute for Occupational Safety and Health (NIOSH) established respirator filter classes.  P100 means that the respirator is approved for particles including oily mist, and has a filtration efficiency of >99.97% against the NIOSH certification test.  US OSHA regulates safety in workplaces.  OSHA doesn't allow disposable respirators (filtering facepieces) for asbestos.  Asbestos remediation should be done by professional asbestos remediators as there are many additional requirements including proper disposal of asbestos contaminated material.

Question 2

8233 vs. 8293 masks by 3M-what is the difference?

Accepted Answer

The 3M 8233 is a N100 rated respirator with an exhalation valve. It is suitable for non-oil applications, like welding or grinding. The 8293 is a P100 rated respirator with exhalation valve.  It will  filter 99/97 % of oil and non-oil based particulates

Question 3

Is this a good mask for a GO bag?

Accepted Answer

If you mean a bug out bag for survival then yes it would be great in the sense that it is well made. IT is a little big and doesn't fold flat well but is the best of this type I have found. I grind steel and love these. As far as a bug out bag goes I am using the 3M 9211 Cool-Flow N95 Particulate Sanding Respirator. It comes in a ten pack and fold flat yet still has the valve. Those valves are a must for comfort! These are what I put in my packs or bags, and they are individually packaged. But the bigger and better one would be great for the truck bug out gear etc. I'd recommend you get it and the one I mention and see what I mean. And use them both as I do for the proper sized bug out bag. The fold up ones will fit in your pocket, but they don't seal as well, but you can place ten of them in your cars, bags, packs, office etc and at least have you have better than average protection from dust.

Question 4

Is this effective after multiple uses?  I am buying the mask to protect myself against fumes from car exhaust & burning trash piles.

Accepted Answer

As long as it stays dry and fits your face well it should be fine for multiple uses.  If using for disease purposes, it needs to be dry.  If it gets wet or damp it should be switched for a dry one but could be used again once dry as long as it was not "soaked".

ASIN	B001BXRRH4
ASTM Fluid Rating	ASTM Level 3 (High)
Brand Name	3M
Closure Type	Buckle
Color	White
Customer Reviews	4.4 4.4 out of 5 stars (765)
Filter Class	P100
Fit Type	Snug
Global Trade Identification Number	00051138543365
Included Components	1 8293 Disposable Respirator
Item Dimensions D x W x H	8"D x 8"W x 8"H
Item Package Quantity	1
Item Shape	Cup
Item Type Name	disposable-safety-respirator-masks
Item Weight	0.2 Ounces
Manufacturer	3M
Material	Advanced Electrostatic Media
Material Features	3M Cool Flow Exhalation Valve
Number of Items	1
Part Number	051138543365
Product Style	Standard
Recommended Uses For Product	Gas, Mining, Transportation
Reusability	Disposable
Size	1 Count (Pack of 1)
Special Features	Disposable
Specification Met	Niosh Approved P100
Style Number	P100
UPC	051138543365
Unit Count	1 Count
Warranty Description	Manufacturer

3M Disposable Particulate Cup Respirator 8293 P100 with Cool Flow Exhalation Valve, NIOSH APPROVED, Adjustable Buckle Straps and Noseclip, Face Seal, Individually Packaged

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