These are good for the money. Hard to say what kind of protection they would offer against a lethal chemical or biological weapons attack, but they should at the very least provide protection against some of the more common nonlethal chemical irritants. Note that out of the several I bought, one of them was missing one of the necessary filters, so make sure you look through your order carefully if you buy any of these.
I buy one of these every few years to use at work blowing out plasma cutter dust filters, the mask seals perfect to my face and the eye lenses are big enough I can see everything that is going on, great value and when it gets nasty just get another one.
This mask works wonderfully well and I've experienced no difficulties with it. There seemed to be no ware at all on it! There was a bit of a musty smell, but that soon wore off. All in all, it is a great mask!
Great price for a great mask
This is a great mask for displaying, or using as a respirator. I use it whenever I work with fiberglass resin. This is the best price I've seen for it so far.
This is a fine mask. Arrived fast and looked new! The lenses had no scratches on them. The filter set that come with the mask works great for me, they block out paint and bleach smell. But the only down side is the filters are really hard to install. nice mask, but I would recommend a gas mask that uses filters that screw in to the mask.