
Coway
Airmega AP-1512HH Mighty
Durable, effective for allergens/odors, but loud on high.

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Air purifiers work remarkably well. We have a cat and dog and I sometimes suffer a bit with cat hair giving me a persistent sickly cough. I bought a small Levoit air purifier for the bedroom and was amazed at how much better I slept at night. I ended up buying a larger whole house air purifier, (same brand). On a normal setting they run silently and barely use any energy. Not sure about other brands but the Levoit purifiers have reusable filters which you just take out and vacuum clean every week or so. I'd buy one if the single room air purifiers and see if it makes a difference. As far as visiting other people's homes, there's not much you can do about it.
Mine catches me every time my cooking is burning in the kitchen. So I kinda know it works. Cooking smoke (oil droplets) should be in the PM2.5 category, which is what you should worry the most. Mine is Levoit Smart Air Purifier. And yes, they do shred microplastic themselves.
I bought a Levoit smart air purifier. I just turn it on with the button. Never used the app.
I am a Levoit fan, I have the WiFi enabled purifiers throughout my home.
I use Levoit air purifiers in my home and pleased with them. A lot of their models are on sales on Amazon right now. I would suggest NOT leaving your window open if you’re concerned about allergens as well.
Please don’t take advice from here, find out for yourself: Buy an air quality monitor like the one pictured, https://preview.redd.it/gpgkactfh3sg1.jpeg?width=1320&format=pjpg&auto=webp&s=4cdc97dbace6cdeaaca5d25c067fae91e5558927 with VOC, CO2, etc. and depending on which spike for your room, buy a hepa air filter with the matching strength, eg my small farm of X1Cs emit a lot of PM2.5 and TVOC so I got a Levoit that handles double the sq ft of the room and though it has its own detection, I just run it whenever I print. It’s quiet and avoids the issue. But there IS AN ISSUE. It’s different for every space, room, ac system, printer, filament, project etc. You have to sample YOUR air.
levoit is good and has some very affordable options. we have an appropriately sized levoit in almost every room in our house and it helps a lot with allergies. also make sure to change your furnace filter regularly and use merv 13 or higher filters for it

Coway
Airmega AP-1512HH Mighty
Durable, effective for allergens/odors, but loud on high.

Levoit
Vital 200S-P
Smart, effective dust/odor; some find replacement filters pricey.

Winix
5500-2
Budget king, durable; poor VOC removal, Plasmawave disliked.

Coway
Airmega Mighty
Durable, great for allergies/dust, responsive auto-fan.

Winix
5510 & 5520
Good value, durable, effective for pets; carbon filter issues.

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IKEA - UPPÅTVIND

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CleanAirKits - Corsi-Rosenthal Box

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Austin Air - Healthmate Plus

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Winix - 5500-2

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Coway - Airmega 400

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Coway - Airmega AP-1512HH Mighty