It sealed well against a wide range of face shapes and sizes among our testers, who ranged from 5-foot-3 to 6-foot-1, with light to heavy builds.
In our testing, it stood out as the most comfortable respirator mask for long-term wear, since its design gave us space to breathe and had edges that didn’t push against our cheeks. Thanks to increased production, it’s widely available online and in stores. We like the 3M 8511 N95 Cool Flow Valve Particulate Respirator, which is certified to filter out 95% of harmful particulate matter. Mitigate the risk with an N95-certified respirator. In the event of a wildfire, earthquake, or hurricane, the air can become unsafe to breathe due to smoke, dust, and debris. This approach (or boiling) is the only way to be confident that you’ve destroyed all waterborne viruses. The Centers for Disease Control and Prevention notes that a filter has to go all the way down to a 0.001-micron pore size before you have a “very high effectiveness in removing viruses.” That said, if you’re in a situation where waterborne viruses are a possibility-for instance, where flooding recently occurred and the sewage systems are backed up-we recommend using purification tablets in conjunction with the Sawyer Mini. According to the Water Quality Association, viruses can range in size from 0.004 to 0.1 micron. The larger and typically more expensive Survivor Filter, which we also tested, has a smaller, 0.05-micron filter that can catch some viruses but not all. Like most personal filters, it does not filter out waterborne viruses, but those are rare in the US and are typically found only in sewage-infected water. coli, Salmonella, Giardia, Cryptosporidium, and the cause of cholera. The Mini has a 0.1-micron filter that removes bacteria and protozoa such as E.
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