Build a DIY air purifier! Tickets, Sun, Dec 18, 2022 at 4:00 PM | Eventbrite

If you are concerned about the risk of COVID, RSV, the flu, and poor indoor air quality at work, school, or home (especially if people are infected and want to reduce the risk of spread to other household members) but cannot afford to buy expensive HEPA air purifiers, fret not–you can build your own air cleaner with a box fan, some MERV-13 furnace filters, cardboard, and masking tape!It’s called a Corsi-Rosenthal box and it isContinue…

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Building a Corsi-Rosenthal Air Filter Box for the first time

Corsi-Rosenthal box

It took me about 50 minutes to build this Corsi-Rosenthal air filter box with parts from Home Depot here in Toronto. It’s a 20″ box fan, four 20″x20″x1″ 3M 1900 air filters (1″ deep), some duct tape and cardboard. The cardboard came from the fan’s box and from a grocery delivery, so you can use just about cardboard you’ve got around. The shroud has a 15″ diameter hole, as suggested by David Elfstrom on Twitter;Continue…

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How Clean Is the Air on Planes? | Condé Nast Traveler

It’s that time of year again, when travel—or any indoor activity, really—comes with concerns of catching the flu. The combination of the annual surge of influenza activity with still-lingering COVID strains is enough to make even savvy travelers worried about stepping into a crowded airport or boarding a plane.One of the paramount issues is determining if the air on planes hastens the spread of infection. But apprehensions about aircraft cabin air long predate COVID orContinue…

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Filtration Efficiency of Hospital Face Mask Alternatives Available for Use During the COVID-19 Pandemic | Infectious Diseases | JAMA Internal Medicine | JAMA Network

Question: How effective are the aerosol filtration efficiencies for fitted face mask alternatives used during the coronavirus disease 2019 pandemic? Findings: In this quality-improvement study of 29 fitted face mask alternatives, expired N95 respirators with intact elastic bands and masks that had been subjected to ethylene oxide and hydrogen peroxide sterilization had unchanged fitted filtration efficiencies (FFEs) of more than 95%, while the performance of N95 respirators in the wrong size resulted in decreased FFEsContinue…

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Why You will be Forced to Always Wear Masks in Japan – YouTube

Why You will be Forced to Always Wear Masks in Japan

This year is again a very hot summer in Japan! But if you walk on the streets of Japan, you will see something very surprising. Almost everyone has masks on. It is hot here in Israel too, and I find that on really hot days, wearing a mask with an absorbent liner is more comfortable. The air has dust and the mask absorbs sweat and helps against the dust and sand in the air. SometimesContinue…

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Matthew Cortland Hosts Twitter Space: Is it safe to ____?

Disability activist and inspiration for this site and the term adaptive PPE, Matthew Cortland is hosting a Twitter space to help people learn how to manage air quality in indoor spaces and generally protect themselves as the pandemic continues.

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Found! PM2.5 Replacement Filter Activated Carbon Adhesive Tape Backing Adult Child | eBay

Finally found some mask filters with adhesive backing! I’m still trying to find some locally accessible to me, but those of you in the States can get these already. Each filter has a 4-point adhesive to attach to your mask (mask is not included). Source: PM2.5 Replacement Filter Activated Carbon Adhesive Tape Backing Adult Child | eBay

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Facial Tissue As A Mask Filter?

In an article in The Strategist, the author referred to Dr. Yi Cui proposing facial tissues (specifically Kleenex, but not sure if this is because of sponsorship $ or the brand is better than others) as added filters in cloth masks. You may not think the humble tissue would do much against a pandemic virus, but Stanford materials science and engineering professor Yi Cui, who co-authored a study on the best household materials for faceContinue…

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