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.

1. Whirlpool AP450, Honeywell HA300BHD, IQAir GC Multigas, Austin Healthmate and Immunity machines. Have had some of these running without problems for 10-20 years so models have likely changed. Range in price from \~$224 to \~$!400. 2. Generic filters - in general not a great idea. Filters are sized to fit the casing and the fan is matched to the filter. Might be done but a bit risky. 3. Although I haven't needed to purchase machines recently my suspicion is that the "smarter" and more automated the machine is (auto speed, remote, etc.) the less likely they will be controllable by a smart power switch. 4. For printer and VOC removal the best machines run $1K or more. Filters can run as much as $700 (Austin Immunity Machine), but can last for 5 years.

1. Yes, I have them all on Satechi Smart Plugs. 2. I did check Amazon for 3rd party HA300BHD filters and they do exist. 3rd party Filters will more likely be available for models that have been out there a long time as there will be more units sold making it profitable for 3rd parties. This one, or similar ones from them, has been out for > 10 years. No way to tell about their quality or effectiveness. Since I am extremely sensitive I personally don't want to take the risk. Given their specialized nature don't see any for Austin or IQAir. 3. You need to choose a company that has been doing this for a long time and is successful.

For reasonable VOC removal there are only 4 players I know in the market which offer products which have the minimum 10 pounds of sorbent media: Airpura, Allerair, Austin, IQAir. Wildfires product a huge mix of chemicals - from the vegetation, contents of burned buildings, etc. There is no consumer solution that removes all VOCs. Each type of media is better at some chemicals, not so good or not effective at all with others. For the same reason there is no sensor that I know that will give you the level of all VOCs. These machines and filters tend to be expensive. I just upgraded my Austin units with Immunity Machine filters which cost \~$700 each. We were spared wildfire smoke this season but with AQI numbers breaking 100 I was able to keep my indoor values close to 0. I use Austin and IQAir VOC machines along with Honeywell and Whirlpool HEPA units, 3 filters per room.

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

I’ve had good luck with the Honeywell HPA100/200/300 line of purifiers. My two hpa300 purifiers had worked well for about 5-6 years now. For choosing the size, I’d recommend going with one unit per frequently used room. You can choose the unit size based on just the specific space that way

You are describing exactly why I didn’t buy some of the more popular models often recommended. I just got 2 Honeywell HPA300’s. They are simple, process a lot of air, and the noise is very tolerable. I run 2 of them on medium setting in my apartment all the time along with an HPA100 and HPA200 (those last two are older gen’s) In my observation, the larger units have a less annoying noise than the smaller ones. Even though the decibels might be the same on paper, the larger flow chamber has a lower pitch, less piercing noise. I’ve never had a different brand than Honeywell before and I’ve been considering branching out. But your post is exactly why I chose to go with them again.