Honeywell - HPA300

My grandfather has COPD and his pulmonologist specifically recommended the Honeywell HPA300. We got one for his bedroom and another for the living room. It's not fancy or pretty, but his breathing has noticeably improved since we installed them. Sometimes the medical-looking options are that way for a reason - they just work. They go on sale for around $250 fairly often.

This Honeywell HPA300 is a beast for allergies. It has an insanely high Clean Air Delivery Rate (CADR), which means it clears out dust, pollen, and pet dander super fast. I’ve used it in my living room, and it noticeably reduced my sneezing and stuffy nose during allergy season. It’s straightforward—no fancy features—but it gets the job done effectively.

Honeywell HPA300 is the Toyota Corolla of air purifiers. Boring, reliable, gets the job done

I bought a Honeywell Allergen Plus about a month ago. It’s pretty loud on the high setting (not too bad on low and not overly distracting watching tv on medium).  My mom has 3 of them and we have to speak up when they’re on high.🤣 https://a.co/d/gVc1g4k

I’d go with the Honeywell HPA300. It’s got a true HEPA filter and works really well against smoke, dust, and allergens. It won’t cover 2800 sq. ft. in one go, but for larger rooms (around 465 sq. ft.), it’s a solid performer. If you’re dealing with a big space, using multiple units could be a good workaround. If you want something that covers more area in one unit, you might want to check out Medify MA-112, but it’s a bit pricier. Just depends on how you want to set things up. Hope that helps! check reddit thread: [https://www.reddit.com/r/ProductsDiscussion/comments/1jifddb/top\_4\_air\_purifiers\_to\_breathe\_clean\_in\_2025/](https://www.reddit.com/r/ProductsDiscussion/comments/1jifddb/top_4_air_purifiers_to_breathe_clean_in_2025/)

In addition to Medify, which someone else mentioned, I have liked my Honeywell HPA series. I have the 100 and 300 in differently sized rooms.

Honeywell HPA300 is an absolute unit. Not the prettiest thing but it WORKS. We have severe dust allergies and two shedding dogs, and this thing keeps our living room air surprisingly clean. It's a bit loud on high but the lower settings are fine for background noise. Filters are reasonably priced too.

[Honeywell hepas](https://www.amazon.com/Honeywell-Allergen-Purifier-Extra-Large-White/dp/B07DD9H6YH/ref=sr_1_4?crid=58Q0VH8SRXXD&dib=eyJ2IjoiMSJ9.fm6NKggeQcsfscPGKwdhXul_Ss44OnjdD2MRmi36RA6MWr9Fwe-NBbpRfLc-8vaz-YLt_q80WSYTqmjLB_8qLwr9O4xcyEUgJK3JkcV1Nlu89S269qHynFuLBXf89g9gQuo6UnByZRYyJkMru6JmgV4Gy8scyBurl4x_loiTOLPobjCW1nVbwG8BJx8dQ0HgF7ucPLnU7Cf-3sy5O7Ie8xnLOYkc0zhTzSg42lUnff8.65xZTQJUhkIUKNAmmy2u1-gjHrZRnWFvXZ7M59o__Yc&dib_tag=se&keywords=honeywell%2Bhepa&qid=1758225670&sprefix=honeywell%2Bhepa%2Caps%2C237&sr=8-4&th=1) One in bedroom, another in main living room. Have an [air quality meter](http://amazon.com/Temtop-M10i-Professional-Electrochemical-Detector/dp/B07JF53NRK/ref=sr_1_1_sspa?crid=17RTKH4785YHW&dib=eyJ2IjoiMSJ9.0XoXD_Omp-HxTiN_bQSwIzfbh0jIEDEcE3_n1JxKjV8xRiR4mppLcAeS56ru9Y26hq34zXTlmY-nYeXV4s-XrW2JqUqFm9jV8D5uyDEiARoxFPi2oJPYXXD3zUzFAw8N90NhYDTbBpnKnXe6AodJr-dGSA6Pz5cRU_fjnm3VW6ln8LkXSTaX5QFG2sZlHUhtqoT3pR_4AgFNR15P4D5omCZ551ecM4TjuC1o7VXu34E.AAkVh3pD-IOoV6ernbNmGVJr0o_kiKpqqLx47Sd0aAc&dib_tag=se&keywords=temtop+m10&qid=1758225638&sprefix=%2Caps%2C149&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1), but the meter is useless, because my air is polished to near zero. AQI in my house is 4, no VOC's or anything else.

Also check the clean air delivery rate (CADR). I used this site to search for what was good - https://ahamverifide.org/ahams-air-filtration-standards/ I went with a bunch of Honeywell HPA300 machines to cover multiple rooms several years ago and have been thrilled. They run 24/7 every day on low but that turbo speed for about an hour helps move the air through the room faster on highest pollen days. Turbo speed sound is not quiet at all, but the low setting is very quiet. 

+1 to the HPA300. I have 4 of them - 1 in each bedroom, 1 in entryway/dining, 1 in living room - all running for ... 7-8? years solid, 24/7. They are absolute powerhouses. 

Honeywell makes some good air purifiers that are quiet and have a dimmer function for nighttime. A little more expensive, but reliable. I have an HPA200 and HPA 300 that have been running 24/7 for years.