#hepa — Public Fediverse posts

Are HEPA cabin air filters unsafe for some vehicles?

https://piefed.social/c/mechanicadvice@lemmy.world/p/2360436/are-hepa-cabin-air-filters-safe-for-some-vehicles

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

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/

#Yale #YaleClimateConnections #airquality #IndoorAir #co2 #ParticulateMatter #CorsiRosenthalBox #HEPA #filter

Jeff Masters 22.Dec.2025, YCC

Improving indoor air quality might save your life

https://yaleclimateconnections.org/2025/12/improving-indoor-air-quality-might-save-your-life/

RE: https://mastodon.social/@paulbeckwith/115771889007772777

#FYI #PaulBeckwith video lecture and literature review
#airquality #IndoorAir #co2 #ParticulateMatter #CorsiRosenthalBox #HEPA #filter

Ventilate!

(Pro tip: Visit Germany, experts of Lüften =D)

#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!

Why isn't our government mandating (& providing funding for) improved ventilation in public buildings? Study showed with 2.4 changes of the air per hour, cases dropped by 40%. With 4 changes of air every hour, infections dropped by 66.7%; when replacing the air 6 times each hour, infections go down by 82.5%! We need this in theatres, restaurants, schools...
#air #filtration #saves #lives #infections #reduced #replace #clean #filter #protect #students #COVID #HEPA #USA https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid-cases-by-82-2022-03-22/

"Fachleute warnen vor schlechter Raumluft: Mehr Infektionen"
https://www.sn.at/panorama/oesterreich/fachleute-raumluft-mehr-infektionen-150178543

"Schlechte Luftqualität in Schulen, Kindergärten und Arbeitsstätten senkt die Leistungsfähigkeit und hebt das Covid-19-Infektionsrisiko, erklärten Experten Freitag bei einer Pressekonferenz in Wien. Sie nannten es unverständlich und unverantwortlich, dass man in Österreich Lufthygienemaßnahmen wie Filter- und Lüftungsanlagen vernachlässige und bei der aktuellen, seit Pandemiebeginn höchsten Covid-19-Welle in Krankenhäusern und Arztpraxen nicht verpflichtend Masken trägt."

"Es ist medizinisch und ethisch nicht ok, dass sich Menschen in Krankenhäusern mit Infektionskrankheiten wie Covid-19 anstecken, wenn dies leicht vermeidbar ist"

#igoe_at #saubereLuft #Lüftung #Lüftungsanlage #schule #kindergarten #spital #covid19 #covid19at #hepa #HEPAFilter #Raumluft #co2 #maske #ffp2 #Lufthygiene #belüftung #keimfilter #Partikelfilter #Infektionsrisiko #österreich #igoe_plakette #Bildungserfolg #bildung #krankenstand

DIY Filtered Positive Pressure Suit Shows Fine Workmanship - [Andrew]’s Air filtering unit & positive pressure supply might look like something off the set o... more: https://hackaday.com/2020/07/03/diy-filtered-positive-pressure-suit-shows-fine-workmanship/ #activatedcharcoal #positivepressure #activatedcarbon #wearablehacks #medicalhacks #airfilter #blc7000 #how-to #hepa #diy