#air filter

[covid-safer-hotties]

DIY Mini Air Purifier (Corsi-Rosenthal Box) - UPDATED - 3D Printer File

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Got a 3D printer and a 10 inch black and decker mini-box fan? Here's how to use them to make a no-tape CR-box!

[smlmsworld]

Fifth-grader Eniola Shokunbi worked with classmates and scientists from the University of Connecticut. Together, they developed a filter using simple materials: a box fan, furnace filters, duct tape, and cardboard. Each unit costs just $60. + She led a project to design an affordable air filter system to remove cold and COVID-19 viruses from classrooms. + The Environmental Protection Agency tested the system in North Carolina, confirming it eliminates over 99% of airborne viruses. Following these impressive results, Connecticut's State Bond Commission approved $11.5 million to implement the filtration system across schools statewide. + Eniola aims to expand the project nationwide to ensure students can learn in healthy environments. + “I want them to go to school knowing that they’re safe, that they’re healthy, that they can learn,” she commented. -- h/t: NBC Photo: UConn ••• #globalpositivenews #goodnews #airfilter #cleanair #groundbreaking #innovative #inspiring

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[sea-salted-wolverine]

It's summertime which means it's smoke season! Shits on fire out there. Combusting even.

Anyway, I live in a log cabin with no AC so I'm gonna have to build a redneck air purifier and roll with it. Because I know how this whole climate change thing is treating us I figured I would share because the trick that makes this thing work is having it ready to go before the air quality takes a dive.

Step one. Gather materials. Box fan, 4 (four) air filters, masking tape and a kitty to make sure you do it correctly. Get the fat masking tape and make your life that much easier. I got air filters on sale, so I got the nice ones but even the low grade versions are better than nothing

Step two. Assemble a vaguely boxlike shape. Air filters are directional and you want the fan blowing air into the box, so pay attention to the little arrows. (If you want that true redneck authenticity, put it together backwards first then take it apart and do it again like I did)

Step ? Remove cat from box.

Step 3. Slather box with tape. there does exist the theoretical limit of too much tape, but that is in the realm of mathematical thought experiments. You can't possibly use too much tape. Get the box taped to the fan and add some shrouded.

Tada! I now have a large unwieldy box that will clean the air just as soon as I figure out where to put it where the cats won't try to sit on it.

[misforgotten2]

Pollution, germs, radioactive fallout and the scariest of all, the millions of dust mites that inhabit your home. Your home, right now, they're everywhere and no filter system is gong to completely get rid of them, ever. So suck it it up (no pun intended)

Sunset The Magazine of Western Living - May 1957

[urban-paradise]

Stoked to have the 3.0 finally!

[laurellynnleake]

Just swapped out the filters on our 1st Corsi-Rosenthal cube, and what a difference! Dusty old filter above, minty fresh one below.

This particular filter box spent 10+ months on low inside our house, catching tons of wildfire smoke, PM2.5, and COVID-19 aerosols, as well as pollen, dust, and mold. Glad all that's on THERE and not in our lungs!

I highly recommend building your own CR box for your home, school, work, mutual aid meet ups, etc. All you need is 4 MERV-13 filters (sold at most hardware stores), a 20" box fan, scissors, cardboard, and duct tape.

A new one costs about $75-100 - much cheaper and performs a lot better than a lot of fancy air purifiers. Building it with 2 people takes about an hour (mostly to measure and cut out the weird shroud thing), and swapping in new filters is much faster.

Check out the Clean Air Crew website to get started on your own filter fan box! We protect each other! 💪😷✨

[thoughtportal]

Public Health Emergency ends.

Ventilation in Buildings

https://www.cdc.gov/coronavirus/2019-ncov/community/ventilation.html

[affixjoy]

I am continuing to feel insane about life in a pandemic with a toddler. It’s hard and it sucks, and this winter has been particularly brutal for all of it.

I try to be very gentle when talking to my irl people about covid stuff, because they already think I’m overreacting to everything. So a lot of it is just casual mentions of things I do, bringing them masks, linking articles in the family chat…

It usually gets ignored but I figure I have to try, and maybe it will pay off one day.

Well today might be one of those payoff days. I think I finally convinced my pregnant sister to get a hepa filter for her classroom which will hopefully reduce risk to her, her unborn baby, and all her students. She’s already had it three times, once during this pregnancy, and I’m terrified for her and my future niece/nephew. Here’s hoping she follows through 🤞🤞