the only way to keep eyeglasses from fogging when wearing this mask is to take the glasses off. Not what I was hoping for when I purchased these masks for price considerably higher than a good mask without the "exhaust valve". llllllllllll

This mask is very good if you have a big head. Even if the bottom of the mask sits above the chin, it works fine and doesn't crumple up. I've tried several masks which were recommended for large heads, but this is easily the best.As well as that, breathing is done through a valve at the front of the mask, rather than the whole mask itself being the filter. This makes it much easier to breathe, especially if you have to run and start panting.

I don't like wearing masks in general but also know they are a necessity when in an environment with particulates in the air that you don't want to breathe in, such as sanding dust. They work very well compared to others I have used, especially the ones without an output vent. They don't cause my eye protection to fog up as much as most others I have used. I bought these over others with vents even though they are a tiny bit more expensive. That might matter if your purchasers care about how much it would cost for thousands of them. I don't use that many so the few pennies more are ok. They are heavy duty and catch all the dust. They are easy to put on and I don't mind them when I am working nearly as much as others I have used. I think I will throw away unused others that aren't nearly as good. I don't notice any fine dust getting through the material. The vent works very well. I like these masks even though I hate wearing masks.

While these N95 respirators are NOT recommended for infection control primarily because of the exhaust valve (your exhalant is not filtered but instead exits the valve), they are, nevertheless, good respirators for dust and for smoke during wildfires. The exhaust valve also makes breathing easier and this valve also reduces fogging should you wear glasses.

When it comes to protecting yourself from the hazardous smoke during wildfires or ensuring a worry-free travel experience, the 3M 8511 All-In-One N95 Respirator emerges as a true lifesaver. With its impeccable design, comfortable fit, exceptional value for money, and versatility, this respirator has quickly become an essential companion in my daily life.Firstly, let's talk about its performance during the wild fires that have ravaged Canada recently. As someone living in an area prone to wildfires, I cannot stress enough how crucial it is to have reliable protection against the harmful smoke and particles that linger in the air. The 3M 8511 respirator promises to filter out 95% of airborne particles, providing me with a sense of security in such dire circumstances. Its advanced filtration technology ensures that I can breathe easier while minimizing exposure to harmful pollutants.Comfort is often an overlooked aspect when it comes to respirators, but not with the 3M 8511. The lightweight construction and soft inner material make it incredibly comfortable to wear for extended periods. The adjustable nose clip and cushioning foam on the inner lining ensure a snug fit without compromising comfort. Even during long hours of wear, I never experienced any discomfort or irritation on my face. This respirator truly goes above and beyond to provide both protection and comfort.One of the standout features of the 3M 8511 is its remarkable value for money. Considering the quality, durability, and performance it offers, the price tag is more than justified. Compared to other similar respirators, this one offers excellent longevity, allowing me to get the most out of my investment. It is reassuring to know that I don't have to compromise on quality while sticking to my budget.Moreover, this respirator proves to be a versatile companion for various scenarios, including traveling. Whether I'm navigating bustling airports or exploring unfamiliar environments, the 3M 8511 ensures that I can breathe clean air and protect myself from airborne hazards. Its compact size and foldable design make it incredibly travel-friendly, fitting easily into my bag without taking up much space. Having this reliable respiratory protection on hand when venturing into unknown territories provides peace of mind like no other.In conclusion, the 3M 8511 All-In-One N95 Respirator is an exceptional product that excels in protecting against wildfire smoke and offers unparalleled comfort, value for money, and versatility. If you live in an area prone to wildfires or simply want a reliable companion for your travels, look no further. This respirator truly delivers on its promises, ensuring the safety and well-being of its user. Stay protected, stay comfortable, and embrace the freedom of worry-free adventures with the remarkable 3M 8511 respirator by your side!

I had a house fire next door and the smoke caused me bronchial phenmonia. In order to clean up my house, I wanted a mask that would handle smoke particulate. As a female with a thinner face, I was worried these would be too large for me; however they are quite tight. They are almost too small on my husband and father. At least they make a good seal. The exit valve is nice so, but they still get quite warm. I would not buy again for day to day work but I would use for specialty work. It's too early yet to see if I get sick again from being in the house (aka, how effective the mask is) but will update.

Not sure if these are medical grade (there are several types of N95 masks), but these are 3M quality and they provide way more protection than ordinary face masks. Just know that they fit quite tightly and are a lot warmer to wear than ordinary surgical or cloth masks. But medical people wear N95 masks day after day all day long and if they can deal with a bit more discomfort in exchange for superior safety, I can, too,

These are excellent particle filtration masks with a valve that lets you more easily exhale. I have used them for many years while woodworking, because they let you breathe easy while working/breathing hard.They are not helpful for Covid safety, because Exhaled breath goes out the valve without filtering it through mask. Therefore you could spread Covid.Amazon lists these for solvent safety, but they are not rated for solvents by 3M. You need multi-stage carbon filters for solvent safety.Some reviewers complain about them coming in a plastic bag with a twist tie. That is the only way I ever received the 10 packs. I don’t think that these masks were ever intended for sterile situations. A plastic bubble sealed 2 mask package used to be available before COVID. None of the packages were labeled for Medical use.Amazon no longer lets me order these because I’m not a registered business. So I recently ordered them from Granger.

Arrived quickly. Seems like a good product. Thanks!

These were sent to my son and family who live in ACT of Australia. It was life saving for them to receive these. They work well for what they needed.