We would make this mask a pick except that, at more than $3 apiece, its much pricier than our picks from Powecom and Kimberly-Clark (each around $1 per mask). But masks worn by most people in relatively low-risk situations could probably be worn for considerably longer. The downside is that the KN95 leaks a bit more air than an N95. Bona Fide Masks has a variety of KN95 face masks for sale online. The KN95s, which the Food and Drug Administration has approved for emergency use by health care workers, have ear loops for a tight fit that is slightly more comfortable than an N95. Co., Inc.) Ball Chain Mfg. step 1: Scrape off the coating of the A nti-fake sticker step 2: P lease click " ANTI-FAKE CHECK " step 3: Input the serial numbers shown at bottom of the sticker. Even a bit of extra fat in the chin or a few millimeters in the width of the nose can have an impact on a respirators fit, the authors noted. Powecom Non-Medical Disposable KN95 Respirator Face Masks$12 for 10. The small size even has cord stoppers in the ear loops. Co., Inc.) (The colorful variations have not undergone the Korean Ministry of Food and Safety approval process, though the materials are similar.) Harley N95, semi-ridged, molded, NIOSH approved, $114 for a box of 20. However, it usually costs more than twice as much as our other respirator picks. 1. 2. there is an Anti-fake Label pasted on each carton of the Powecom KN95 protective masks. Mr. Khalifah cautioned that the fakes he spotted on Amazon could just as easily be on websites for other big retailers, such as Walmart and eBay, that allow third-party sellers to ship products. What we dont like: As some readers have pointed out, the Powecom designs ear-loop elastics can feel uncomfortably snug. We bought Powecom masks directly from the importer and distributor through Bona Fide Masks, a legit site thats part of Ball Chain Manufacturing, the largest manufacturer of ball-chain-related products in the world. We also like that it comes in a small size, which might work for some bigger kids, and in a tie version, which may be especially helpful for people who wear hearing aids. If the saturation is less than that, some of the tissues cannot get enough oxygen to stay alive, and are forced to start essentially eating themselves. Because they dont fit close to the face, theyre not designed to protect the wearer from inhaling small, potentially infectious particles. One way to detect a fake is to hold it top side up under a dripping faucet: If the droplets soak in instead of completely beading up, its not a real surgical mask, which by definition should have some level of water resistance. Please feel free to use. For authentic Powecom products, including the Powecoms FDA Authorized KN95 respirator masks (for use in healthcare settings by healthcare professionals during the COVID-19 public health emergency), please visit Bona Fide Masks . 5. And counterfeiters continue to flood the market, even on trusted sites like Amazon. Disclaimer: All products or images displayed on this website containing logos, trademarks or other intellectual property from customer orders are shown to illustrate the reproduction capabilities of Bona Fide Masks Corp. Purchase of merchandise from us in no way conveys or grants you permission to reproduce any logos, trademarks or proprietary information, nor does it transfer, grant or lease ownership of any logos, trademarks or other intellectual property rights to you. The CDC reports that about 60% of KN95 masks sold in the US are fake. Guangzhou Powecom Labor Insurance Supplies Co., LTD. Powecom KN95 Respirator Face Mask - FDA Authorized, https://www.fda.gov/media/136664/download. We independently evaluate all recommended products and services. We elected not to send the Blue mask out to Colorado State for filtration-efficiency testing because, besides lacking broad fit appeal, it costs more than the Dr. Puri and Kyungin Flax KN94 masks we preferand it is considerably more expensive than our picks. Amazon removed the listing after I called about it. Scrape off the coating off the label (it is similar to a lottery scratch-off ticket). In fact, Colorado State Universitys Christian LOrangewho has tested thousands of masks, including our pickstold us that the most egregious fails have come from surgical-style masks as opposed to respirators. ", Terms and Conditions for Product Purchases, Powecom KN95 Respirator Mask - Headband Style - FDA Authorized - 10 masks per pack, Harley Commodity N95 Respirator Face Mask | L-188 | NIOSH Approved | 20 masks per box, Harley Commodity N95 Respirator Face Mask | L-288 | NIOSH Approved | 20 masks per box, Ball Chain Manufacturing Co., Inc. Honored with Leadership Award by the Westchester County Association. pleased to have authorized Bona Fide And the mask is NIOSH-approved (see Guangzhou Harley). 10.Do not steam the face mask, and do not put it in Microwave oven. When I typed Powecom KN95 into Amazons search box, the masks instantly popped up with a rating of 4.5 stars. After some reading, I learned about the trade-offs between the two types of masks. ("https://s.pinimg.com/ct/core.js"); All Powecom KN95 masks manufactured after May 20th, 2020 come affixed with an anti-counterfeit/anti-fake sticker. Another path I could have taken was to order masks directly from the manufacturer. The Etiqa Airway Round Mask is neither FDA-cleared nor NIOSH-approved, but according to its packaging and seller Be Healthy, it has been approved by the Korean Ministry of Food and Safety. In all, Ive so far assessed 25 respirators and 14 surgical-style masks. 2. They were the real deal. Loretta Fernandez, PhD, associate professor of civil and environmental engineering at Northeastern University, found that a poorly fitting KN95 may block 0.3-micron particles only as effectively as a poorly fitting surgical maskat around 72% efficiency instead of the promised 95%-plus. He added that the company is currently evaluating additional designs. The CDC guidance, intended for health-care personnel in situations much riskier than what I experience in my day-to-day routine, notes that masks shouldnt be used more than five times. 3. handles all warehousing and distribution in New York, as supply Co., Inc., All Rights Reserved. Bona Fide Masks Copyright 2020 Ball Chain Mfg. (function () { Its a bit pricier than our picks but cheaper than most others on this list. The term medical-style mask refers to the types of masks you typically see in health-care settings. The thick material proved much less breathable for our testers, and the headbands looked and felt like thick, albeit smooth, rubber bands. Sitemap | Bona Fide Masks Website Terms and Conditions of Use | Privacy Policy | Terms and Considitions for Product Purchases | Your Privacy Rights. It's a tough world out and there right now and bad actors in the mask business are making it even harder. "What Is The Difference Between An N95 and KN95 Mask. KN95 mask is not intended for use as a surgical mask or to provide liquid barrier protection. Will continue to get our masks here. In 2020, the manufacturing company created Bona Fide Masks in response to the shortage of PPE in 2020. As its name indicates, the Medline ASTM Level 1 Procedure Face Mask with Ear Loops meets ASTM Level 1 standards, which means it blocks at least 95% of particles measuring 0.1 micron in diameter or larger. Enter the numbers into the checker and you will receive the following verification notice: "Hello. Our companyhandles all warehousing and distribution in New York, as supply chain security is one of our highest priorities. For this guide, I tracked down legitimate respirators and masks, as well as reliable retailers that sell them. Please note: FDA Authorized respirators should be used in accordance with CDC recommendations as found in CDCs Strategies for Optimizing the Supply of N95 Respirators. Ive spent the past several months scrolling through scores of masks online, poring over documents from the CDCs National Institute for Occupational Safety and Health (NIOSH) and the FDA, and puzzling over little certification slips half-written in Chinese (a childhoods worth of Saturday morning Chinese school has not helped). Click here to learn more. Made with four layers of fabric, including cotton, the Powecom KN95 Disposable Masks are over 95 percent efficient at filtering particles, including dust, smog, and droplets. I never saw Powecom Kn95 on Ambursts site to purchase. FREE DOMESTIC SHIPPING ON POWECOM KN95 FACE MASK ORDERS. Click the button "Verify" to verify. Amazon also said it had addressed the questionable Powecom mask that I nearly purchased, as well as the mask advertised as a scarf. Bona Fide Masks This article was edited by Tracy Vence and Kalee Thompson. ct.type = "text/javascript"; Its malleable material and soft headbands form a good seal for most faces, and this masks generous cut allows more air to filter in for easier breathing. We ordered Powecom KN95 masks from Bona Fide Masks ourselves and received what we believe to . Disclaimer: All products or images displayed on this website containing logos, trademarks or other intellectual property from customer orders are shown to illustrate the reproduction capabilities of Bona Fide Masks Corp. Purchase of merchandise from us in no way conveys or grants you permission to reproduce any logos, trademarks or proprietary information, nor does it transfer, grant or lease ownership of any logos, trademarks or other intellectual property rights to you. Back then, they were on the FDA's . Do not use the face mask in explosive atmosphere and place. 1200 PCS/Carton ( regular ) FDA clearance and NIOSH approval can take many months and can cost a good amount of moneysome companies decide not to bother, while others have submitted the paperwork but are still awaiting a decision. Armed with this advice, I continued my search for the Powecom mask. 46% non-woven polypropelene, 28% melt-blown fabric, 26% ES hot air cotton. Use only in adequately ventilated areas with sufficient oxygen. However, one tester described it as actually painful to wear, though thats also the reason why she trusts it for doctors appointments at a hospital. As a subscriber, you have 10 gift articles to give each month. gtag('config', 'AW-973125873/k2qqCKuk7n8Q8fGC0AM', { But this flat fold N95 is typically pricier than our other respirator picks. To know what masks to avoid, see our blog post on the signs that suggest you have a fake N95, KN95, or KF94. The. Keep the face mask away from vapor, oils, chemicals, liquid, acid, alkaline objects, paint spraying. Fernandez, who has been assessing masks (PDF) since the start of the pandemic, noted an easy fix that a dentist shared with her: By cutting the ear loops on a KN95 mask and reattaching them to form headbands, the dentist was able to achieve a secure enough fit to nudge the filtration back up past 90%. Volume Prices for Gov., Edu., Healthcare, etc. Volume Weight:15.9 KG/carton Bona Fide Masks as the Exclusive Distributor in U.S.A. Ball Chain Mfg. !function(e){if(!window.pintrk){window.pintrk=function() The generous ear loops should help this mask fit wider faces, and theyre easily knotted for narrower ones. Please just click one time (to avoid repeated checkings). For masks sold on Amazon, we confirmed with the manufacturer that we had a legit link to the product it was selling, and if we couldnt reach the manufacturer (and if the mask was sold out everywhere except Amazon), we checked that the mask was both sold and shipped directly by Amazon. When the pandemic hit last year, they immediately became scarce as health care workers and governments rushed to obtain them. This mask doesnt feel the easiest to breathe throughbut that suggests some degree of filtration efficiency. Seems like about the next best thing to an N95 that you can get out there when you consider the quality and price.". The Powecom KN95, made to the new standard, will be the same size, shape and use the same production process. pintrk('page'); Bona Fide Masks is the only Powecom distributor to currently offer the Black KN95 face mask for sale in the United States. As the CDC recommends, you can knot the ear loops and tuck the sides (this CDC video shows you how) or add an adjustable cloth face mask (like one of our picks) on top. The loops are also firmly attached, so when youre putting this surgical mask on or taking it off, the fasteners are less likely to pop off (as weve found with some cheaper models). The FDA Authorized Black Powecom KN95! You can find the link to the Powecom KN95 anti-fake verification system here. Surgical masks are less expensive and less thick than N95 designs and other respirators, but because they tend to gape at the sides, they require some adjustments for optimal protection. KN95 mask is not intended for use as a surgical mask or to provide liquid barrier protection. The face mask world is a bit confusing. Sometimes cross-checking wasnt possible until we received the masks and found the product qualification certificatethe small slip of paper in the packaging that includes the details about the product and its manufacturer, which is usually half written in the language of the country the mask comes from. Frequently on sale, these masks are a good choice if you cant get ahold of the DemeTech or Medline masks, or if you just want to add a burst of color to your mask wardrobe. Anyone can read what you share. Ball Chain Mfg. These masks, which come in white or black, are similar in shape (measuring 6 inches vertically, tip to tip) and elastic to the Powecom KN95 masks. (Those with incorporated filters, however, such as the Enro Tech and Happy Masks Pro, filtered similarly to N95s, though machine washing and drying diminished their efficacy.). Leave the contaminated area immediately if breathing gets difficult or dizziness or distress occurs. window.bodl = JSON.parse("{\"session\":{\"id\":\"42eabf92-328a-408d-802a-57a7ebc4da4e\",\"first_touch_timestamp\":\"2023-05-02T06:16:03\",\"first_touch_referral_url\":\"\",\"first_touch_request_url\":\"https://www.ballchain.com/powecom-kn95-respirator-mask/\"},\"shopper\":{\"visitor_id\":\"\",\"customer_id\":null,\"email\":null,\"first_name\":null,\"last_name\":null},\"data_consent\":{\"functional\":true,\"analytics\":true,\"advertising\":true},\"events\":[{\"bodl_v1_product_page_viewed\":{\"id\":\"\",\"channel_id\":1,\"line_items\":[{\"product_id\":698,\"sku\":\"KN95-RSP-PWCM-MSK-10\",\"variant_id\":null,\"product_name\":\"Powecom KN95 Respirator Face Mask - FDA Authorized\",\"gift_certificate_id\":null,\"gift_certificate_name\":null,\"gift_certificate_theme\":null,\"purchase_price\":null,\"sale_price\":null,\"base_price\":null,\"retail_price\":null,\"quantity\":null,\"discount\":null,\"index\":0,\"brand_name\":null,\"category_names\":[],\"currency\":null}]}}]}"); This is partly due to the plastic brackets on either side of the mask, which allow you to tighten the headbands as necessary. The KN95s, which the Food and Drug Administration has approved for emergency use by health care workers, have ear loops for a tight fit that is slightly more comfortable than an N95. That authorization has since been revoked (PDF) due to a replenished supply of N95s, but the FDA suggests that these previously authorized respirators (such as our pick, the Powecom) be redistributed for use in nonmedical settings. But its also thanks to the ample clearance the mask allows over the nose and mouth, which offers plenty of room for filtered air to circulate. Keep the face mask away from vapor, oils, chemicals, liquid, acid, alkaline objects, paint spraying. My husband and I tried the regular-size foldable masks, and they stood up slightly less high off our faces, especially near the nose, compared with other masks we tried. The intended use of the KN95 protective masks is to protect the user against non-toxic solid, particulates, powder, PM2.5 smog, dust, saliva, suitable for Non-oil particles. The demand was so intense that a gray market sprang up for them. Please note: FDA Authorized respirators should be used in accordance with CDC recommendations as found in CDC's Strategies for Optimizing the Supply of N95 Respirators. The best mask for kids is the most protective one theyll keep on. Generally speaking, if youre fogging up your glasses, its not a perfect seal. Hana Akselrod, George Washington University School of Medicine. They can be uncomfortable to wear for long periods. The Powecom KN95 is manufactured by Guangzhou Powecom Labor Insurance Supplies Co., LTD., which has designated Bona Fide Masks as the premier face mask distributor in the United States. pintrk('load','2612364397626', { em: '%%GLOBAL_BillingEmail%%', }); /* Check the air sealing of mask. If you would like to know the difference between a KN95 and an N95 read our article, For Guangzhou Powecom Labor Insurance Supplies Co., LTD. KN95 CE certificate, please, For the instructions on how to use the Powecom Verification Code System please, Individually Packed Black or White Ear Loop. Construction: Multi-layer filtration system of non-woven soft and breathable fibers. One lukewarm review from someone who had paid for the product noted that the masks were thin and very, very big.. A January 2021 PLOS One article on mask-fit issues reported that a KN95 was a poor fit for all seven study participants, while the five N95 masks in the experiment did little betterfailing to fit four out of seven subjects. 50 pack of Powecom KN95 Masks - $40 (510 packs) An alternative to the standard N95 face masks, the KN95 are an essential resource for keeping workers and the public safe. Scrape the coating of the anti-fake label, visit www.powecom.com and click the navigation "ANTI-FAKE CHECK" guide to verify. their website 1. Avoid high temperature over 40C and humidity over 80% Scrape off the coating of the anti-fake label, visit www.powecom.com and click the navigation "ANTI-FAKE CHECK" . Water will destroy filtering ability and protection. You can press this mask in half, but because of the bracket, it doesnt stay folded like the others on this list. Bona Fide Masks, the premier Powecom distributor in the United States, is proud to bring you the newest KN95 Face Mask from Powecom. What is a medical-style mask, and do you need one? 2. there is an Anti-fake Label pasted on each carton of the Powecom KN95 protective masks. 3. But also, KN95 and surgical-style masks dont always fit very well. anti-fake sticker for Each bag of headband KN95 Protective Masks since 10 May, POWECOM applies anti-counterfeit technology and Anti-Fake stickers to assist customers to verify genuine POWECOM masks exported to overseas markets is the NO.1 direct importer and the Largest authorized Distributor of xmlHttp.open('POST', 'https://bes.gcp.data.bigcommerce.com/nobot'); With pandemic-related recommendations and regulations continually evolving along with the coronavirus itself, masks will likely remain a part of peoples lives for some time. We also reached out to some of the manufacturers or the sellers to understand the vetting or manufacturing process, especially if we couldnt find the manufacturing company on any of the above lists. This is especially true given the presence of additional layers of protection (such as vaccines, social distancing, and good ventilation). Unlike N95 masks, these other respirator masks typically have ear loops instead of headbands. Water will destroy the filtering ability and protective nature of the mask.\r\nDo not steam the face mask or put it in the microwave.\r\nKeep the face mask away from vapor, oils, chemicals, paints, liquid, acid, and alkaline objects.\r\nMake sure to discard the face mask when it becomes visibily ditry or breathing resistance increases remarkably.\r\n\r\nSPECIFICATIONS:\r\n\r\nKN95 mask is not intended for use as a surgical mask or to provide liquid barrier protection.\r\nIf you would like to know the difference between a KN95 and an N95 read our article \"What Is The Difference Between An N95 and KN95 Mask.\"\r\nFor Guangzhou Powecom Labor Insurance Supplies Co., LTD. KN95 CE certificate, please click here.\r\n\r\nANTI-FAKE / ANTI-COUNTERFEIT VERIFICATION\r\nFor the instructions on how to use the Powecom Verification Code System please click here.\r\nFor more information, please see Terms and Conditions for Product Purchases." Input the numbers shown on the label. If you would like to know the difference between a KN95 and an N95 read our article, For Guangzhou Powecom Labor Insurance Supplies Co., LTD. KN95 CE certificate, please, For the instructions on how to use the Powecom Verification Code System please. The mask scored 99 percent filtration efficiency in the C.D.C.s tests. Store the mask in clean and cool place. Wearing the mask on a cold winter day, weve also noticed it collecting more condensation at the inner layer than our picks. The normal consumers that shop on Amazon do not know that they just bought a fake mask. Click here. It also costs less (around $45 for 20 masks) than most other bifold-style N95s, which typically run about $3.50 or more per mask. Stay tuned for future updates. manufacturer Guangzhou Powecom in the U.S. since 2020. ) The United States Mask Particulate Respirator N95 is manufactured domestically and NIOSH-approved. 3D three-dimensional design with fluffy, breathable and soft material, will not cause the fog when wearing glasses. Some have exhibited a mere 20% filtration rate on small particles (about the same as many of the filterless cotton masks we tested for our guide to cloth face masks), though most of them have demonstrated a slightly less shocking 70% to 80% rate. var BCData = {"csrf_token":"f7ea6c166522bbfef906bec5bbd0f38e4bed10630257ccf4a20995cdc6712bb1","product_attributes":{"sku":"KN95-RSP-PWCM-MSK-10","upc":null,"mpn":"","gtin":"","weight":null,"base":false,"image":{"data":"https:\/\/cdn11.bigcommerce.com\/s-xszi2drqh5\/images\/stencil\/{:size}\/attribute_rule_images\/8491_source_1609354689.jpg","alt":"Powecom KN95 Respirator Face Mask - FDA Authorized"},"stock":null,"instock":true,"stock_message":null,"purchasable":false,"purchasing_message":""}}; anti-fake sticker for Each bag of headband KN95 Protective Masks Bona Fide Masks, the premier Powecom distributor in the United States, is proud to bring you the newest KN95 Face Mask from Powecom. Here we recommend legitimate N95, KN95, and surgical masks you can buy from trusted retailers now. Guangzhou Powecom Labor Insurance Supplies Co., Ltd., the manufacturer of our FDA authorized KN95 respirator mask, has designated Bona Fide Masks as their premier distributor in the United States. A lightweight, NIOSH-approved N95. The 4CAir AireTrust Nano Mask is one of the thinnest KN95-type masks weve tried, thanks to its patented nanotechnology. With almost identical specifications, these masks have similar filter performance, flow rate, inhalation and exhalation metrics resistance and an 8% Total Inward Leakage. This level of filtration on medical-style masks (assuming theyre genuine) is better than what you can get from almost all masks made from only cloth, said Linsey Marr, a professor of engineering at Virginia Tech who is an expert in the science of aerosols. To hear more audio stories from publishers like The New York Times, download Audm for iPhone or Android. Its also our favorite because its the only one of its type that actually fit our testers well, and it felt surprisingly comfortable. For everyone besides health-care workers, whose risk of exposure is generally far less, there are more sustainable choices, including reusable cloth masks with high filtration efficiencies such as the Enro Tech or Happy Masks Pro, both picks in our guide to the best cloth face masks. Another pack of 20 masks looked attractive and was described as approved by the C.D.C. If you're thinking about purchasing the Powecom KN95 Disposable Masks, we recommend doing so quickly they've already sold out once, and are bound to disappear again. It was possible to speak with a live customer service agent instead of just sending email. Thanks to its soft, flexible construction, the Kimberly-Clark N95 Pouch Respirator should fit most people. If you would like to return to browsing our Powecom KN95 respirator masks, or place an order, please visit: Powecom KN95 Respirator Mask. Armbrust Surgical Masks are FDA 510(k)-cleared and come in a fun range of color options typically not seen in masks, such as denim, orange, and green. Still, separating the good options from the bad can be tough. (SARS-CoV-2, the virus that causes COVID-19, has an expected survival time of 72 hours.). Hana Akselrod, MD, assistant professor of medicine in the division of infectious diseases, George Washington University School of Medicine, phone interview, February 23, 2021, Kathy Cummins, head of marketing and overseer of research and data analytics, Hinge Global, phone interview, February 24, 2021, Loretta Fernandez, PhD, associate professor of civil and environmental engineering at Northeastern University, phone interview, February 23, 2021, Christian LOrange, PhD, associate director of the Center for Energy Development and Health, and assistant professor of research in mechanical engineering, Colorado State University, phone interview, February 3, 2021, Linsey Marr, PhD, professor of civil and environmental engineering, Virginia Tech, email interview, February 9, 2021, Nikki McCullough, PhD, global technical services and regulatory director, 3M Personal Safety Division, phone interview, January 19, 2021, Bryan Ormond, PhD, assistant professor of textile engineering, Textile Protection and Comfort Center, Wilson College of Textiles, North Carolina State University, phone interview, June 12, 2020, Kristen Picard, product marketing director, Honeywell, phone interview, February 11, 2021, Chris Plotz, director of education and technical affairs, INDA (Association of the Nonwoven Fabrics Industry), phone interview, March 2, 2021, Nura Sadeghpour, health communications specialist, CDC/NIOSH, email interview, February 24, 2021, Ron Shaffer, PhD, former research branch chief, National Personal Protective Technology Laboratory, NIOSH, phone interview, June 29, 2020, Shirley Simson, press officer, FDA, email interview, February 24, 2021. Regardless of which type of mask you manage to get your hands on, however, you wont come anywhere close to the stated filtration values in real life unless you secure a perfect seal to your face around the entire perimeter of the mask. All Powecom KN95 face masks manufactured after May 20, 2020, come affixed with "anti-fake" stickers that allow the end-user to verify authenticity. We have been recommending Powecom KN95 masks since as early in the pandemic as summer 2021. Wirecutter is the product recommendation service from The New York Times. Keep the face mask clean before use. But that has been the case with almost all the medical-style masks weve triedwithout cord locks and malleable fabric, respirators just arent as adjustable as cloth masks. Because its a nonmedical respirator, this mask is not tested to protect you from potential splatter of bodily fluids. If youre using these masks only occasionally, you can opt instead for a pack of 10 for $7.50. This 5-ply protective KN95 is highly structured, so it creates a tight seal around the mouth and nose, but sits largely off the face for added comfort. Nor does NIOSH approve any other respiratory protective device solely certified to international standards. The Steps for Verification Scrape off the coating of the anti-fake label (sticker), visit www.powecom.com and click the navigation "ANTI-FAKE CHECK" Input the serial numbers shown at bottom of the sticker. You can play around with the bands for a better seal, but overall we found this mask to be quite restrictive and suffocating. Verifying Powecom KN95 from Amazon Shipped and sold by Amazon.com, but I see a lot of posts nowadays claiming that Amazon doesn't separate inventory.So like an idiot i scanned the QR code on the verify label which tried to open a wechat link. You can confirm that its other overseas manufacturing partners are indeed FDA 510(k)cleared by typing the company name (found on the Certificate of Conformity, a slip of paper enclosed in the box) into the FDAs device database. I recently spent hours comparing masks online and almost bought a pack of counterfeits on Amazon. We independently review everything we recommend. Once we tracked down several masks that we concluded were actually medical-grade, our job had only just begun. (Cloth masks, in contrast, were initially intended to protect other people from the wearer, though depending on their materials and design, they can also work the other way around.). And it did: With a perfect seal, the mask offered more than 99% filtration efficiency for 0.5-micron-diameter particles drawn through a chamber at a rate of 15 liters per minute (similar to the rate that a person would exhale when talking at normal volume). Do not use the face mask when the concentration of dust, or particles are immediately dangerous to health or life. I visited the manufacturers website, which listed steps for verifying that a mask is real. *At the time of publishing, the price was $12.

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