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Yeah the whole 'just use HEPA' has been what's worked for us after about a half dozen different air purifiers of experimentation. I noticed the positive ionizat

Yeah the whole 'just use HEPA' has been what's worked for us after about a half dozen different air purifiers of experimentation. I noticed the positive ionization things changed my heart rate variability which was spooky.

o11c 1y ago
Empirically, the ionizer is good for wildfire season, but the rest of the year HEPA is good.
- throw0101c 1y ago
  > Empirically, the ionizer is good for wildfire season, but the rest of the year HEPA is good. Smoke can be dealt with via a carbon filter and you don't have to do a chemistry experiment in your house. * https://shop.aprilaire.com/search?q=Carbon+Air+Filter https://shop.aprilaire.com/search?q=Carbon+Air+Filter
  - o11c 1y ago
    Empirically, no it doesn't, at least not for the quantities of smoke we get in wildfire season. It's probably enough for most "abandoned industry on fire again" fires, if that's all you get?
    - throw0101c 1y ago
      Per the EPA: > Upgrading to a filter rated MERV 13 or higher can be especially important during smoky periods to effectively remove fine particle pollution from smoke in the indoor air. * https://www.epa.gov/wildfire-smoke-course/preparing-fire-season https://www.epa.gov/wildfire-smoke-course/preparing-fire-sea... The carbon is for the smell. The EPA also points to this California list, which include "mechanical" types which do not use electronic measures: * https://ww2.arb.ca.gov/list-carb-certified-air-cleaning-devices https://ww2.arb.ca.gov/list-carb-certified-air-cleaning-devi... The main challenge is the resistance to airflow (US: inches w.c.) that can be a problem with for HVAC equipment, which is why you want a large surface area, e.g.: * https://electronicaircleaners.com/docs/aprilaire_2416_2216_air_purifier_specification.pdf https://electronicaircleaners.com/docs/aprilaire_2416_2216_a... * https://www.aprilaire.com/whole-house-products/air-purifiers/model-2516 https://www.aprilaire.com/whole-house-products/air-purifiers...

o11c 1y ago

Empirically, the ionizer is good for wildfire season, but the rest of the year HEPA is good.

throw0101c 1y ago
> Empirically, the ionizer is good for wildfire season, but the rest of the year HEPA is good. Smoke can be dealt with via a carbon filter and you don't have to do a chemistry experiment in your house. * https://shop.aprilaire.com/search?q=Carbon+Air+Filter https://shop.aprilaire.com/search?q=Carbon+Air+Filter
- o11c 1y ago
  Empirically, no it doesn't, at least not for the quantities of smoke we get in wildfire season. It's probably enough for most "abandoned industry on fire again" fires, if that's all you get?
  - throw0101c 1y ago
    Per the EPA: > Upgrading to a filter rated MERV 13 or higher can be especially important during smoky periods to effectively remove fine particle pollution from smoke in the indoor air. * https://www.epa.gov/wildfire-smoke-course/preparing-fire-season https://www.epa.gov/wildfire-smoke-course/preparing-fire-sea... The carbon is for the smell. The EPA also points to this California list, which include "mechanical" types which do not use electronic measures: * https://ww2.arb.ca.gov/list-carb-certified-air-cleaning-devices https://ww2.arb.ca.gov/list-carb-certified-air-cleaning-devi... The main challenge is the resistance to airflow (US: inches w.c.) that can be a problem with for HVAC equipment, which is why you want a large surface area, e.g.: * https://electronicaircleaners.com/docs/aprilaire_2416_2216_air_purifier_specification.pdf https://electronicaircleaners.com/docs/aprilaire_2416_2216_a... * https://www.aprilaire.com/whole-house-products/air-purifiers/model-2516 https://www.aprilaire.com/whole-house-products/air-purifiers...