3M 8511 Paint Sanding Valved Cool-Flow Respirator 10-Pack

Great product

I love this mask! I'm asthmatic and it's hard for me to breathe in most masks but this one comfortable and makes me feel less like it's a struggle to breathe. I've met others and turned them on to using this mask as well and they've been happy with it as well. We have to be extra cautious but now it doesn't have to be such a long day of fighting for air.

They have a new "M" shaped nose piece that helps mold and fit the mask to the nose area. This one is very comfortable and the straps on the first one I used went on easily without having to be pre-stretched. It is very important to read and follow the instructions for molding the nose piece and then testing for a proper and secure seal. I always like to put on glasses after testing and check for fogging. If they fog then you may not have a secure seal. Note that these are vented masks.

The mask is not comfortable, but is tight and does the job. Would not use for other than doing things around the house that require a mask (sanding, etc.).

I use these for painting. The breathing diaphragm is much more comfortable especially in the heat than a full flush cover. They were hard to get for quite awhile and the price increase is disappointing but they do work well and I guess that's just the way economics work! Will stock up when it hits the old price, if that ever happens. Otherwise I appreciate the safety and ease of use they provide.

The 8511 has elastic fabric bands that don't break or stretch out like the rubber ones can. Comfortable fo all day wear in construction dust. Mask will turn brown as it saves you from all the dust. When you blow your nose at the end of the day, not one gritty speck of dust on the hanky. Future me thanks you for making a great product.

for sanding drywall

I use these for both dusty work in my woodshop, and more recently, walking around outdoors. They're very comfortable, and can hold up to quite a few uses. They're clearly 100% genuine.