Looking to buy an air purifier for my studio apartment.
From what I can work out, the following are important to consider:
1) area of room/apartment/house.
2) High Efficiency Particulate Air (HEPA) filter. It seems there are some products with gimmicky advertising out there. e.g. “HEPA-type,” “HEPA-like,” or “99% HEPA,”, which are not genuine HEPA.
3) Cost of replacing filters, ease of purchasing, and maintenance.
4) ACH (Air Change per hour) rate and CADR (Clean air delivery) rate.
5) Air quality display on board and/or through smartphone app.
6) Ease of use.
7) Noise db level.
8) EMF radiation emitted.
The last one I've just leaned while doing some research. Apparently, even the best air purifiers can fall foul with this one.
Can you think of anything else to add to the list above.
BTW, I've been looking at the Hitachi EP-PZ50J:
https://www.homeappliances.hitachi.com/ … pz50j.html
Few other websites also have the specification. However, none of them have an ACH or CADR rate as such. Only list Air Flow rate (m3/min).