#hepa — Public Fediverse posts

I keep reading about Corsi–Rosenthal boxes as DIY air purifiers that outperform all commercially available air purifiers.

You literally only duct-tape four HVAC filters together and slap any regular PC fan onto them.

US-Americans recommend the brand #Filtrete for MERV-rated HVAC filters, but in Europe that brand costs at least twice or thrice as much as in the USA.

Are there any equivalent affordable HVAC filters in Europe with a MERV rating of 8 or 13? Or do I simply have to swallow the additional cost because HVAC filters aren't as ubiquitous in Europe as they are in North America?

#DIY #CorsiRosenthalBox #CorsiRosenthal #HVAC #HEPA #MERV #AirQuality #AirPurifier #AirFilter

@alisynthesis As a long haul strategy, the modular #OddCube #CorsiRosenthal Box should be released later this year - 3d Printable or kit-buyable, uses any brand of 10" furnace filters, runs pc fans for low energy use and easy replacement, has a cool shape (a #cuboctahedron !) - see their #Kickstarter https://beige.party/@beadsland/116889416498442008 #HEPA #DIY #3dPrinting #Wildfires #AirQuality

Hazardous Air Quality - “Everyone should stay indoors and reduce activity levels.”

The DC region has blown past the expected Code Red Air Quality warning for Friday, July 18. It was only red for about an hour before moving to the purple “Very Unhealthy” for everyone range. Now, it’s mostly in the maroon “Hazardous” for everyone range, which is the highest this scale goes up to. This is due to wildfire smoke from Canada. Good thing rain is in the forecast for tomorrow.

If you have an N95 mask, such as the 3M Aura (which fits about 80% of adults), it is a very good idea to wear it. Under these conditions, a half piece respirator is better if you have one and need to go outdoors. Most hardware stores should have them in stock if you don’t have one on hand.

Remember that smoke rises, so stay on the lowest floor while indoors if you can. The PM levels for my upstairs rooms are much higher than my lower ones. You can seal leaky windows with painters tape and plastic sheeting to create a “safe room” with HEPA air purifiers or make a CR Box (I reposted a tutorial yesterday).

https://www.airnow.gov/

#MaskUp #N95 #StaySafe #AirQuality
#PM #HazardousAir #CodeRed #Wildfire
#HEPA #CRBox

Can houseplants really purify the air in your home? What the science actually says
#Houseplants #IndoorAirQuality #AirPurifier #HealthyHome #Science #HomeCare #Wellness #IndoorPlants #CleanAir #HEPA #NASA #Ventilation #Sustainability #Pollution #Plants
https://the-14.com/can-houseplants-really-purify-the-air-in-your-home-what-the-science-actually-says/

I facilitated an online workshop for @freetechproject tonight and it's the first time we tackled technology to fight #Covid (Co2 monitors, air purifiers, #HEPA, #CorsiRosenthal boxes, #NukitTempest, etc) as well as why this is important (what Covid is, how it spreads, etc) and the small (predominantly older) group was very open to the ideas, sincerely inquisitive about the topic, interested in reducing risk, aware of inclusion issues, and sensitive to my own experiences as carer for a partner disabled by Covid. I'm also realising that people genuinely refer to "Covid" in the past tense sometimes because they wrongly associate it with government policy, while at the same time they very clearly understand that #CovidIsNotOver. My point is, keep tackling the topic, and keep giving folks the benefit of the doubt -- humans are of course good at heart and state policies, and obviously the establishment media, may very well indeed not, in fact, reflect people's actual concerns about Covid.

#ABCovid #LoCovid
Onze belangrijkste artikelen hebben we meegenomen op locovid.nl, inclusief info hoe #covid19 zich verspreidt (door de lucht), de enorme impact die het heeft (#LongCovid, #oversterfte, #ziekteverzuim), hoe we ons kunnen beschermen (#ffp2, #hepa, #schonelucht) en hoe de pandemie echt te beëindigen (#ventilatie, #testen, #maatregelenladder).

Ook alle weekberichten over de status staan nu op locovid.nl. Weekbericht 2024-29 van Maria: https://locovid.nl/oversterfte-ziekte-en-verspreiding-covid19-2024-29/ over de zomergolf!

Hoping to get some input from #HVAC #Engineers and other experts: in a school built in the 70s that originally had no walls and is now divided up into classrooms via a mixture of full height, 3/4 height, and half height walls and dividers...would getting walls & doors be helpful or harmful from a #CleanAir standpoint? HVAC has #MERV13 filters, & the building has a handful of #HEPA air purifiers, but very few windows.
#Covid #IndoorAir #Schools

@Benfell @ZeroCovidColin

We can stop #Covid easily.

We can't stop #cholera with vaccines. We stop cholera with water treatment plants, because cholera is in the water.

Also water filters and UV for long-distance hikers etc.

We stop #Covid with air cleaning -- #HEPA filters, #MERV13, #CorsiRosenthalBox -- because Covid is in the air.

And with #respirator #masks
( #N95 / #P100 / #P3 / #FFP3 / #FFP2 / #KN95 / #KF94 etc).

Side benefit: we also stop #flu and #RSV.

It's a #ParadigmShift.

"We follow #CDC Standards" is the new "Our doctors are licensed priests who pray before their surgery (but don't wash their hands)"

Clean water stops cholera.
Clean air stops Covid.

Medical staff need reusable #P100 masks. Medical exam rooms need portable #HEPA filters to bring the #CADR up to ACH 12.

#CovidIsNotOver #COVIDisAirborne #P100 #N95 #HEPA #CRBox #MERV13 #ACH12