3MAura Particulate Disposable Respirator 9211+ with Cool Flow Valve, N95, NIOSH APPROVED, Smoke, Grinding, Sanding, Sawing, Sweeping, Woodworking, Dust, 10/Pack

I wanted to find the best mask for the terrible air pollution in Beijing China. After several days of research, I narrowed the choices down to 3 brands: 3M 95N, Totobobo (Singapore) and Respro Techno (UK).pm2.5 refers to particulates smaller than 2.5um (A hair's diameter is 30 times of pm2.5). They are extremely harmful to lung and heart as they can penetrate deep into the lung and blood. 3M 95N stands out in terms of its technical superiority. It can remove 95% of super fine particulates (down to 0.3um). In comparison, totobobo does not filter out as many particulates according to a fit test done by Hongkong University, and Respro can only filter out particulates down to 1um (according to the very little technical spec.on its website).Any of 3M 95N has the same technical ability to filter out fine particulates. So the key is to find one that fits the best and wears the most comfortable. A basic one would be 8210V (V stands for breathing valve which lets the moisture out). 8511 is a step up that has better elastic band and a bit more rigid form. It is more durable than 8210V.I find the best to be 9211+. It is fold-able and individually packaged (great for travel or storing away). The nose band (made of foam) runs across the whole length. When formed around the nose properly, it provides a very good fit to the face. The mask fits both my husband (Caucasian) and I (Asian) very well.Understandably, the air flow is reduced while one wears the mask, but I don't find the mask overly suffocating or hot to wear. I am willing to sacrifice some comfort to protect my lung. Since I own the mask, I finds it also to be quite useful when doing some house cores.In short, I highly recommend it particularly if you are traveling to countries with bad air or working in a very dusty setting!Update: I recently spent 2 weeks in BJ and wore 9211 daily. It had a snug fit to my face and felt comfortable to wear. In comparison, 8210V is less fitting and also its rubber band less comfortable. In spring, air quality is better than the heating season. Still I found that the mask became blocked after one week and I had to replace with a fresh one.

I have serious allergies and had to finally buy a mask for mowing and yard work. Received these today and tried one out for about an hour. Very happy with this purchase, they fit perfect, they seal around the face but breathing is easy with mask in place. Glasses do not fog up. Elastic is band is comfortable. For a women these are a great fit, not too big and bulky. They are sealed in flat bags which keeps them clean until opened for first use. I highly recommend this mask for comfort and keeping pollen out.

Bought these for elderly relatives and myself to wear to doctor's appointments during this flu season. Now, you may think that an N95 respirator is overkill for a doctor's office, and maybe you're right. But these are still less expensive than Tamiflu/ER visit/lost income. Given the low efficacy of this year's vaccine and the new warnings/research findings about influenza virus being transmitted simply by breathing, a mask seems prudent for sitting around in a health care setting, and these are more effective than earloop/surgical masks when it comes to droplets and aerosols.Between this and the 8511 (another 3M respirator with an exhalation valve), I found this one more comfortable for breathing and exertion, and easier to maintain its placement on the face once on. It also was more comfortable with glasses, with less fogging. The 8511 was more comfortable for the older folks although one of them refused to wear it and mostly held it in their hands and cupped their face with it. I guess that's still somewhat helpful...

I used these while doing heavy physical activity as the pandemic was starting to wind down and there was a noticeable difference in how much less moisture would accumulate inside the mask with these. My face was definitely happier to be less damp. I never had any problems with the seal closing up either. Great if you are healthy and just need to protect yourself from airborne virus and particulate. Just make sure you don't use these if you are the one that is sick because they release all of your exhalations into the environment and wont protect those around you from anything you have.