Honeywell
HPA300
Based on 26 Reddit mentions
$219.99
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
Has anyone tried this self made air purifier? They’re called Corsi Rosenthal box
Looks like enough money and trouble that I would just get a cheap hepa filter if it were me. I bought a Honeywell hpa300 iirc. It's ran perfectly for over ten years. Filters are cheap on Amazon. It saved my ass when the mold was at its worst. The last few years I haven't used filters much (my home d
...kfirerisingup in r/ToxicMoldExposure
January 22, 2026 7:44 PM
3
Air purifier Request in the US
AVOID BLUEAIR. If your unit breaks they will not offer replacement parts(out of warranty) on discontinued models even if only a few years old. I bought a $900 unit and bought over$3k in filters and the fan went bad after a few years and they would not provide a fix. Only offered me a small discount
...CB_700_SC in r/AirPurifiers
January 23, 2026 1:22 AM
2
Should I call the health department
If you think that will help, then do it. It probably won't cause problems for you, but I think management might already be doing everything that's their legal responsibility. Outside looking in, I would expect them to be gone within about 3 months. That's how I would take "soon". I think you need to
...DogwoodWand in r/Apartmentliving
February 18, 2026 12:56 PM
2
IsItBullshit: The claim that using an air purifier can significantly improve indoor air quality?
I have the Honeywell hpa300 and it's great. Make sure anyone you pick has standard sized filters. I always buy the off branded ones since they're much cheaper.
Miiiine in r/IsItBullshit
November 23, 2025 3:26 PM
2
What's the best air purifier or brand to buy for home currently that has HEPA filters?
Honeywell makes good air purifiers. They're manually controlled, so not a smart device, but I have 4 of them in my home running 24/7 and they have been going for 6 years without any problems. I bought the HPA300 model. They need regular prefilter changes, and annual hepa filter changes. The replacem
...Illustrious_Salmon in r/smarthome
April 15, 2026 7:21 AM
1
These guys demonstrate the real impact of air purifiers
Damn, prices have really gone up since we got them. Check the filter prices too though before you buy; they add up real quick replacing them 1-2x/year. We have two of the HPA300s for the basement and first floor, and the smaller one in the bedroom. Maybe went a little overboard when the wildfire fir
...TommyBonnomi in r/BeAmazed
March 2, 2026 7:46 PM
1