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The Science Behind Our PM0.1 Filter

Enro PM0.1 Filter Mask

 After over a year of wearing them, you most likely already know that face masks are an essential tool when it comes to containing and slowing the spread of airborne contaminants like bacteria and viruses. But what makes some masks better at this than others? The answer lies in achieving a close fit and in filters like the PM0.1 included in Enro filtered face masks. Filters are a critical layer in your mask that, just like the filter in your air conditioner, acts as a barrier to trap contaminants before they have a chance to spread.


If you’re looking for the most advanced reusable mask possible, you’ll definitely want to go with a filtered option. Because of their ability to trap even the smallest of particles, PM0.1 filters are one of the most effective non-medical options on the market. You deserve the very best — which is why PM0.1 filters are built into every single Enro mask.

How The PM0.1 Filter Works 

PM0.1 filter

Unlike surgical masks or cloth masks without a filter, PM0.1 masks like the Enro reusable face mask have a built-in PM0.1 filter that acts like a fine mesh to trap and block particles as small as 0.1 microns — AKA unimaginably tiny stuff. To put that size into perspective, pollen particles are generally larger than 10 microns in length, while bacteria generally ranges between 0.3 and 5 microns in length.

Combined with our outer layer of water-repellant material and our inner layer of breathable cotton, Enro PM0.1 masks trap and filter out over 99% of bacteria, viruses, and particles as small as 0.1 microns when brand new and over 98% after 100 washes according to tests run by industry-leading laboratories using standards set by the American Society for Testing and Materials (ASTM) and the American Association of Textile Chemists and Colorists (AATCC). This means our lab-tested masks are more effective than many other reusable masks on the market, making them a great choice for those who want to take the most precautions when it comes to protecting their communities.

Learn more on a PM0.1 filter vs. PM2.5 carbon filter.

Benefits of Our PM0.1 Filtration Face Masks 

Filtered Masks

If you’re looking for the perfect filtered mask, you’re in luck. While Enro masks include a PM0.1 filter, many other face masks on the market either don’t have a filter, or adhere to PM2.5 standards. This means that their filters only catch particles as small as 2.5 microns, and anything smaller is able to get through. When tested, they generally only block around 50% of dust, pollen, and bacteria, and only 10% of viruses.

While PM2.5 filters are a step down from our PM0.1s, they’re still better than no filter at all. Reusable masks without a filter only block 50% of pollen, dust, and bacteria, and block 0% of viruses from getting through. This is what makes filtered face masks so essential in the fight against the spread of illnesses.

The benefits of the Enro PM0.1 masks don’t stop there — where other filters trade comfort and breathability for effectiveness, we’ve built our masks with lightweight cloth materials that make breathing as easy as possible while wearing one, because we know that the best mask to protect your community is one that you actually use. Our inner layer of 100% breathable cotton offers all-day comfort, helping you conquer your day with confidence.

Our filters are also built into our masks, so you can say goodbye to buying replacements. Plus, it can be washed and dried up to 100 times and still maintain its high performance. The outer layer of each mask is even treated with SILVARDUR™ antimicrobial protection to inhibit bacterial growth between washes. Simply put, we’ve thought of everything to help make wearing a mask as effortless as possible, while still meeting the high standards you, your family, and your community expect.

 

Try Enro Reusable Face Masks With Filter

With Enro PM0.1 filtered masks, you don’t have to wonder if your face mask is working. You know it is. Upgrade your collection when you try our reusable masks that come in a wide variety of colors and patterns to match your personal style. We also used 3D modeling to create six sizes to fit nearly any face, including children, because everyone deserves a comfortable filtered face mask that works... plus, we also carry really cool kids' face mask designs.

Breathe well and excel — Enro has you covered.
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