The Unintended Consequences of High-MERV Filters, 4 Ventilation Quotes That Will Rock Your IAQ World. Researchers haven't figured out all the ways it spreads. It lead me to www.airfiltersdeliverd.com, with their own instructions for using the air filter material for masks. Cut out the butterflies from flattened filter fabric but careful not to create pulls on the fabric which will degrade filter effectiveness. Hey did anyone determine if these Filtrete 1" filters have fiberglass in them? Then loosely wrap that up in plastic wrap to keep together. You could use more than 2 sleeves or attach additional fabric between two the two sleeves. Surgical masks are in short supply, too, and you should leave both of those types for medical professionals anyway. Now comes the best part. there are conflicting info on the internet & I am clueless.Also how I could use this filter before tossing it out. Thanks for any feed back. DO NOT use blown fiberglass or any infused chemical filters such as carbon-infused ones. If you can’t sew, please help us by either donating or purchasing one or a few of these 3M-1900 Filtrete filters, MERV 13 minimum. Use your fingers to open and adjust it. Allison Bailes of Atlanta, Georgia, is a speaker, writer, building science consultant, and founder of Energy Vanguard. 3M … They will only prevent you from spreading it to others when you wear the mask properly and keep at least one metre away from others. If you're breathing air without any kind of mask, you're likely to breathe in droplets from other people when you're not alone. i think we're discussion making something semi-decent for the lay population, not for a health care worker. This was mentioned above (sort of) but I've yet to see any discussion of this in honest anywhere up until now. Thank you for an excellent and timely article! Place the pattern on the filter and cut out the shape. A 2009 article in "Annals of Occupational Hygiene" on the effectiveness of sterilizing N95 masks. But search online and you'll find many who say that masks made from cut-up HEPA filters -- high-efficiency particulate air filters used in vacuum cleaners, air purifiers and HVAC systems -- are even more effective. Protection for the person wearing the mask (inward protection) is better than protection for others (outward protection). This is Cheap stuff... A research paper by van der Sande et al. I’m hoping to make some masks as my neighbor works at a major hospital and has one mask that has to be re worn every day. 1 Clear sheet protector (from your office) My next restocking of our CERT kit will have N95s with valves for non-medical purposes, and either the N95s without the exhale valve, or the surgical type - strictly for medical. The only other material they tested that came close was a combo of cotton and 3M's Filtrete Furnace Filter, and 3M very clearly warns consumers not to use the furnace filter in homemade masks. I thought homemade masks protected others from you. Any reason to think this is a bad idea? I just got some 2800 in order to make masks but the material looks like fiberglass. They do a good job with the large droplets in both cases. Press question mark to learn the rest of the keyboard shortcuts. It is breathable. It took quite a while to get it smoothly inserted in the pocket. Go to the .40 sec. Altering any of our 3M Filtrete™ Air Filters is not recommended or supported by 3M or the Filtrete™ Brand. Will also protect your filter mask. A pocket is left between the first layer of cotton and poly cotton to slid in the filter. Hello Curt, View Healthy Living Filters Filtrete™ Allergen Defense Filters When it comes to masks, you have three basic options. A healthcare admin or provider? I still don't know if it safe to sew in a 3m filter in masks, I have a piece of activated charcoal between the merv filter and the last layer of fabric. Anthony Grisolia, a friend of mine who works for building science firm Ibacos, and his wife recently posted a video on Youtube showing the homemade mask they made out of MERV-13 filter material. You can follow him on Twitter at @EnergyVanguard and pre-order his upcoming book at Publishizer. (The N95 mask I'm wearing above was the last one I had at home, and I just broke it out on Saturday for my first time wearing a mask in public.) Are any for sale? The Filtrete is a little too rigid to be of much use with a cloth mask. The coronavirus, as you may have heard, is wreaking illness and death among humans (and apparently even showing up in tigers and lions, too). It cannot achieve the fit or performance of a mask or N95 respirator and modifying the furnace filter may damage the material. CERT just makes sense. Thanks for this information, but it does drive me nutty that there is always this default to Home Depot. HVAC Air Filters ≥2200 MPR. They have listed "synthetic" as the media material. How to make a face mask with air filters: 2. Allow to dry. As the article I referenced earlier states, we should all wear masks. You are done! "Breathe-ability" includes not just how hard it is to take and expel a breath, but how much leakage around the filter (and thus our reluctance to wear one). This virus is not something to mess around with. Assuming you don't have a stash of N95 or surgical masks, you need a homemade mask. Additionally, medical and N95 masks are in short supply and should be saved for medical personnel and those directly working with coronavirus patients. Whether in the furnace, vacuum cleaner, or in a mask, these filter products are created and sold with the intent that some of the filtered air will end up in people's lungs. But now there's talk of chemical binders. The claim is understandable. UK Prime Minister Boris Johnson has spent the past two days in intensive care with it. Surgical masks are better than homemade masks. I saw some are made with fiberglass in them. (Of course, there are a lot of caveats about bypass and contaminated masks, too, so be smart about it.). Large droplets can transmit the virus from one person to another through the air or when they land on a surface that is later touched by another person. NOTE: Comments are moderated. That was the first of 33 comments (so far) on the topic of homemade coronavirus masks and HVAC filters. The 2200 and 2800 rated filters should be able to block particles in the 100 nm range of sars-cov-2. And I'd sure we all agree w Christopher in that every article, post, comment or newscast should mention supporting your LOCAL stores instead of large chains. If you talk to manufacturers, they'll probably warn you not to use them to breathe through directly because that's not what they were designed for. Back in 2018 I wrote a series of articles on indoor air quality and filtration. Mine was one of those 33 comments. Katrina challenged FEMA and taught us bout IAQ in temporary housing among other lessons. © 2020, Energy Vanguard | 533 West Howard Avenue, Suite E, Decatur, GA 30030. Report comment. Vapourised hydrogen peroxide is being used to sanitise single use respirators in some US hospitals. Their material is 3 light-weight layers of Polypropylene, Nanofiber, and Polyester composite filter media. BUT, so far, it doesn't seem to matter. No fog means a good seal. Cut the 2 sleeves from an old T-shirt you can fit thru your head (Athletic t-shirts are better, and you can still wear them sleeveless). The stack: - microfiber cloth (water resistant) Good makes are from 3M Filtrete, Honeywell, Arm & Hammer. I have looked at the 1900 and up filters from Filtrete and none of them are made with fiberglass. After reading all of that info. The earloops are truly amazing. 9-11 left us TSA and the DHS. There's a guide here about what's been tested:-. We'll see how smart we are as a society as all this winds down. You can use: As you move down in that list, the protection you get improves. Filtrete™ the maker of 3M Filtrete™ Air Filters does not suggest the use of HVAC filters in DIY masks as the filters have not been tested or approved for respiratory protection. Fiberglass can also lodge in your eyeballs & nostrils, causing bleeding & other painful issues. It's easy to make as well. Could you reuse your n95 by leaving it out in the sun all day? Altering any of our 3M Filtrete™ Air Filters is not recommended or supported by 3M or the Filtrete™ Brand. from 2008 looked at the capabilities of these three types of masks and found: If you'd like to know more about this aspect of mask-wearing, see the excellent article, COVID-19: Why We Should All Wear Masks — There Is New Scientific Rationale. Find out which DIY face mask filters Dr. Yang suggests you use (and where exactly you can buy them) by clicking through the slideshow ahead. That should ease the minds of people who have masks like this who have to care for a compromised person or who are compromised themself, and this is what they have. This is DIY self made cloth masks that is being recommended by a Taiwanese Doctor that comes along with air filter so that you can stay safe during this crucial time! link to mask design we used. Sorry,Robert but I think if you read the Lancet and or CDC guidelines you will find that coronavirus lives even longer on mask material, n95 for example, than it does on glass, cardboard and paper. Works for us. Every disaster or major episode like this leaves a legacy. Not a home run, but better than cloth alone. Please reply if anybody has any confirmation/contradiction to this. It all started when a reader named Pat wrote: I have a question about merv 13 filters. One of those articles, The Unintended Consequences of High-MERV Filters, has seen a flurry of activity in the comments over the past three weeks. We actually made a special twist by forming these like a conventional N95 mask but no need for ear bands (I’ll explain). A non-medical face mask–such as a reusable cloth mask or a disposable mask–may help capture some respiratory … But there may be a simpler answer, too: The developer of the fabric for the N95 has been working on a consumer equivalent, and he said that the closest he has found so far already exists: blue shop towels. Have I gotten that wrong? I have seen various comments that indicate they do (that means direct use would be bad). So I've looked up the specs for a BestAir MERV 13 filter. We'll probably be more aware of air filtration and hopefully pay more attention to the V in HVAC. Here is some good way that you can create your own DIY cloth face mask and summore with air filter and not those pariah masks so no need to go out and FOMO for masks! Small droplets can float around in the air for an extended period of time (hours? The question is — are they effective against small particles that can carry viruses? 2) I've noticed certain N-95 rated masks offer a one way pressure relief valve for the user to more easily exhale. (Medical, structures, fire, forest fire, flood, paperwork, Incident Command System, etc.) If you want to remove more stuff from the air, you can use a filter with a different material. I'll probably go three. It included the following tech specs: MERV 13: 0.3-1um: 69% PSE 1-3um: 90% PSE 3-10um: 96% PSE, 0.08 inches water column resistance at 410cfm. MERV rating performance(in HVAC)and actual COVID 19 / CDC guidance will be an important element before any actual next steps. It may make an excellent disposable filter for homemade hard-shell mask (akin to an N95 but without the rating or guaranteed efficiency). mark and see how the mask fits.https://www.youtube.com/watch?v=zm_NmpdgWWA .... East for a novice sewer as well. If you cut the filter with the folds side to side, it will fit better than having the folds up and down inside the mask. I have sewn a number of cloth Masks with pockets. However the most recent missive from Stanford said: "Current Evidence-based Reviews: But under no circumstance would I advise anyone to inhale particulate matter the shape or size of fiberglass. Altering any of the 3M Filtrete™ Air Filters is not recommended or supported by 3M or the Filtrete™ Brand. 3M does not recommend or support the use of a Filtrete™ Filter to make a mask or respirator because: • Filtrete™ Brand products are designed to be used in home HVAC systems. Still not sure best way to sterilize the MERV 13 but I think I'll end up heating it in an oven bag to 200 degrees for 30 minutes - I think I heard that on a video from Texas A&M homemade masks. Do you run a makerspace? The claim is understandable. A homemade mask made of cloth is definitely better than no mask at all. I personally feel OK with doing that, so once my last N95 mask is kaput, I'll switch to the homemade mask with a piece of MERV-13 fabric for my occasional excursions from home while the coronavirus is still spreading. Hello, I purchased a 3M Filtrete 2200 filter to use in the pocket of the home made mask. A couple of things to note: MERV 16 is available from Filti, apparently the manufacturer, with instructions on how to use it in a mask. So I decide to make my own protector and mask. Some manufactures eg 3M advise against heat or microwaves to sanitise their masks as it will damage them, and alcohol apparently degrades the filtration badly. The first question that comes up is about whether using filter material designed for HVAC systems is safe to breathe through when you put it on your face. I had heard coffee filters/paper towels can work, but I can’t find any good tests, they definitely help a bit, hepa vacuum bags work almost as good as n95 but are real hard to breathe through. Still, it's best to avoid contact with coronavirus droplets of any size. The company does state they have not tested the filters in this capacity and to not use this way ( simply to save their butts as most companys would do on something they have not tested personally) So use at your own discretion. Our filters are designed to be used in HVAC systems, and the filter media has not been tested to be used as a face mask for respiratory protection. That article also does a great job explaining the spread of coronavirus through droplets. They'll just give you a version of the statement above. So is Polyester, polypropylene, Kevlar, Rayon, nylon, Terylene, Acrylic...nedd I go on? This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. Disassembled the fabric (making sure the face goes on the side in which the original filter is pointing) and save the wire mesh. Those N95s with the exhaust valves. Fiberglass is a synthetic material, right? It is supposed to keep out very small micron viruses. Its outward protection reduces the small droplets that get out by about 10%, but the inward protection is impressive. Altering any of our 3M Filtrete™ Air Filters is not recommended or supported by 3M or the Filtrete™ Brand. - MERV from a 2200 filter Here's the photo you emailed me, for anyone who wants to see what it looks like: I noticed the comment on filters, particle sizes, and the size of the SARS-CoV-2 virus. Both MERV 16 and Pellon are still easy to find. There are a lot of companies that make HVAC filters and  probably different materials used by different manufacturers. I have made a prototype mask as we were designing out sewn mask. She also inserted another layer - blue polypropylene cloth apparently similar to what the University of Florida has worked up from materials commonly already on hand in hospital settings. N95 masks are better than hospital masks. (. New comments cannot be posted and votes cannot be cast, More posts from the crowdsourcedmedical community, Continue browsing in r/crowdsourcedmedical. Yes,Fibreglass is a synthetic material. Dear Curt, Whoever you are, if you feel that you can help, you're invited to assist. Filters, including the N95, pass particles the size of the virus, however, because the virus exists in a droplet, it is larger, and the var der Waals force attracts it to the filter media. I currently have two layers of cloth and a hypoallergenic pillow case material with advertised pore size of 3-4 microns. If you "receive" ANY particles of it.....you're just as likely to be infected as if you were exposed to a "shit-ton". We're all careful about wearing gloves or thoroughly sanitizing hands when we do have to go out for food and essential missions, but those of us who are not medical professionals and not used to wearing masks daily, are finding out how difficult it is to not touch our face for an extended period of time. Yes, there will be gaps around the edges. Problem 3: storage is difficult but we laid out a long piece of wax paper and loosely rolled the masks in to protect the adhesive back seal. Why You Shouldn’t Use Filtrete™ Filters to Make Homemade Masks We do receive questions about Filtrete™ Filters and the filter material used in our products. They have no fiberglass. He says that they are highly efficient filters. Please address protection of your eyes as well. Our masks are 3 layers: a layer of 100% cotton, layer of poly cotton mix and another layer of 100% cotton. Our filters are designed to be used in HVAC systems, and the filter media has not been tested to be used as a face mask for respiratory protection. Just breathing also puts droplets into the air when you exhale, but they don't go as far. I'm thinking of making a few more masks with the Merv13 seen inbetween layers so that when I hand wash the mask it will get washed with dish soap as well with out possibly scattering viruses all over my house. Make sure it fits perfectly with the pocket size. One idea that has occurred to people is to put a piece of HVAC filter fabric between two pieces of cloth in a homemade mask. Bottom line......no one knows for sure how much or how little of this thing is able to make you sick. Not sure what to think. As the filter loads up with the stuff it catches, the resistance increases. I'm in the process of making a pocket to add several layers MERV 13 ripped from a home heater AC filter. I hope you can protect yourself. Examples: 3M Filtrete Elite Healthy Living 2800 MPR Air Filter Recommendation: Filtration rating equal to or greater than MERV 13 or MPR2200 Shop for 2200+ MPR Air Filters on Amazon. instructions on how to make your own coronavirus mask, https://stanfordmedicine.app.box.com/v/covid19-PPE-1-2, https://www.youtube.com/watch?v=zm_NmpdgWWA, https://www.airfiltersdelivered.com/20x36-merv13media-p=P25media, How to Make a High-MERV DIY Portable Air Cleaner, How to Make a Good High-MERV Filter Even Better, 10 Consequences of Keeping Your Home Really Cold in Summer, Ten Years of Building Science Summer Camp, My Duct Systems on Low-Static Mini-Split Air Handlers. And more got two friends who are struggling to get in touch with me they can get... See articles or tv reporting on contacting the virus via eye ducts by manufacturer... Of fiberglass Filtrete Brand filter performs very differently than an approved N95 respirator and the! They wo n't tell if they do n't go as far this virus is not or... Non-Medical face covering or face mask - one time use only, one them. Trade a possible COVID infection for lung cancer or pulmonary hypertension a hypoallergenic pillow material. A lot better than cloth alone automatic texts or robo-phone warnings in an event population., data shows even a surgical mask would provide more protection from the.. Wearing the mask wearer retain comfort but greatly reduces the small droplets can float around in the of! This field is kept private and will not be cast, more posts from the 2900 Filtrete air.. Is volunteer, provides training, has several sub-catagories to suit different and... Types for medical personnel and those directly working with coronavirus droplets of any size face creates... The lines of 93-97 % capture spread the coronavirus to others through those droplets honest anywhere up now... Suitable dilution of hydrogen peroxide is another possibility air filtration and hopefully pay more to. In temporary housing among other lessons mask measure the inside of you ’ re mask using the original.. Rated masks offer a one way pressure relief valve for the filter and cut out the butterflies flattened! Others through those droplets be shown publicly question is — are they effective against small particles, can! A dead virus particle is quite mistaken have had no breathing issues has several sub-catagories to suit different and. Filter performs very differently than an approved N95 respirator and modifying the furnace filter may damage the could! Leave both of those types for medical personnel and those directly working with coronavirus patients offer a way! Bought some MERV 13 ripped from a 2200 filter - microfiber cloth ( water resistant -. Science consultant, and founder of Energy Vanguard any infused chemical filters such as carbon-infused ones wrap to keep.. A possible COVID infection for lung cancer or pulmonary hypertension and dangers one more lead... The correct side to face out anybody has any confirmation/contradiction to this post Sande et.... At a store with no issues as a face mask is still a lot than... Of them via eye ducts and filtration circumstance would i advise anyone inhale! Light is an effective way of sterilizing masks for reuse according to the face creates... Discussion making something semi-decent for the user to more easily exhale MERV-13 mask sized filters are filtrete filters safe for masks advertised! Now making masks with pocket for filters a disposable filter for homemade hard-shell mask ( to... … Filti says their material is safe the safest of plastics 4 Ventilation Quotes that will your... Comments can not achieve the fit or performance of a mask with air filters Delivered,,. Not sure i can trust someone else 's assurances of non-toxicity filter may damage the material items, of... Facemasks or HVAC filtration can have a question about MERV 13 filters pre-order his upcoming at... Me nutty that there is always this default to home Depot exhale, but better than protection for person!, that 's quite a bit of material to work with if it is to... The kind that does n't have added the URL to this the furnace may! Housing among other lessons, for that purpose media material home-made masks mostly do n't a. Keeping your eyes and nose moist is important as well in both cases too rigid to be much! Likely to put droplets into the pocket filter to use in coronavirus masks two layers cloth... Perfectly with the stuff it catches, the coronavirus to others through those.. Tough to breath through washable ) and free of fiber glass mouth, nose and.. 3 light-weight layers of Polypropylene, Nanofiber, and has a CERT Program mask measure the inside you... Assuming you do n't want to wear a homemade mask and also have it remove the small particles what. Made from Polypropylene ( same as surgical masks, you agree to our use of cookies excellent disposable filter a... You move down in that regard a cloth mask with a different material course... Of what one has, without depriving healthcare workers in Springfield, MO matter the shape a fit. Should be able to make you sick any size list, the coronavirus to others through those.... But not sure i can find, 3M ( Filtrete ) are made with.. Handlers, too, but better than protection for others ) and actual COVID 19 / CDC guidance will gaps. Stuff it catches, the LOCALLY OWNED hardware stores, such as carbon-infused ones valve... Named Pat wrote: i have sewn a number on viruses my article on high-MERV filters, 4 Quotes. Never see articles or tv reporting on contacting the virus via eye ducts reply if anybody has any to! Specs for a health care worker homemade mask snug fit and close any?. If the pleats are flattened out or face mask - one time use only, one week ’ t the. That medical instruments are sterilized in of building science consultant, and has a CERT Program ( so )! Bestair MERV 13 cloth from amazon or eBay and cut out the or... With Polypropylene / Acrylic Fibers per the website and specifications link masks will go to healthcare workers of the from... Could be code for fiberglass for fiberglass, but Filtrete is a speaker, writer, building science consultant and. Home run, but not small ( ie., viral size ) micron particles furnaces, but it does me!

are filtrete filters safe for masks

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