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Filtered, yes, but not HEPA.


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The article mentions a HEPA filter.

That's a different argument -- whether or not the HEPA filter really is a HEPA filter.

If not HEPA, then which filter types do you recommend?


HEPA is only for particulate contaminants. At least some of the expensive filters have activated charcoal and other chemical filters.

HEPA does not filter gasses like HF.

It's not a hepa filter, which is probably why it doesn't come up when you search that.

HEPA removes only particulates, not VOCs and not CO2.

HEPA filters in general are. This will be very welcome.

You can read more details after you click "Product details". It says that the filter corresponds to EPA12 class, so no HEPA.

> The particle filter is tested according to EN 1822-1 and ISO 29463-3 which corresponds to class EPA12.


HEPA filters are for particulates. They won't do much about gasses such as formaldehyde or radon.

Did you mean to imply that Blueair filters as a rule don't have HEPA-rated filters?

The idea that "only HEPA-rated filters are acceptable" is bonkers and also internally inconsistent.

Two of their "also great" recommendations are Blueair purifiers, which do not have HEPA-rated filters.


HEPA cannot filter molecules.

I do wish the filters were better though, they're really not very good, just basic cellulose. They're mainly to catch big stuff like pet hair. Nowhere near a HEPA.

Generally speaking, HEPA filters can't be cleaned.

A true HEPA filter does capture PM2.5

Why hepa filters?

Indeed, and many (most?) domestic air filters include HEPA filters. I have a Phillips one[1] and it does.

[1] https://www.philips.com.au/c-p/AC1215_70/series-1000-air-pur...

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