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But overall I am very dissatisfied with the quality of this piece of safety equipment. I actually really liked using it.After a few months of general usage, the mask piece itself broke on me. Product worked well for me for awhile. One of the plastic clips which attached the straps to the mask snapped became unusable. I'm probably going to buy another mask unit, but not from MSA.-Valkyrie I might have received a defective item, based on the other reviews for this product.
The mask fits well and adjusts very easily. Also keeps one from inhaling fibers of the insulation. I used it when I put insulation in and when I finished walls with sheet rock and mud and tape. The filters work really well in keeping you from inhaling the dust from the sheet rock when cutting out openings with a router, and from sanded joint compound.
This works much better than the paper masks that do not form a good seal with the users face.
Don't know how it works on chemicals, but in the workshop, a mask like this is a must. No more choking on sawdust. Can't believe I haven't had one of these before. Easy to put on and take off. WAY better than those disposable paper things. Also good for sounding like Darth Vader when playing with the grandkids.
I purchased this respirator so I could work down in my musty crawlspace and get some waterproofing work done.My first usage, all was well and the respirator worked fine.The second time I used it, the exhale valve sort of got stuck with each breath, and it took extra effort to get it to "pop" back open. So I would have to make the mask uncomfortably tight to force the air out of the stuck valve.I'm returning the mask and will try something else. Sometimes my breath would escape the mask by the nose seal and fog up my safety glasses.
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