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See the AutoModerator comment. Air purifiers aren't good at reducing visible dust or pet hair as both are large and heavy compared to "invisible" pollutants like PM2.5. See the sticky post at the top of the subreddit and our other subreddit resources on dust: I need an air purifier for dust. What sh

With a 150 ft^3 bedroom, you need a CADR of 100 to get the recommeded 5 air changes per hour (assuming 8' ceilings). You could put something like a Coway AirMega ProX in the bedroom. On silent mode, I measured it at a CADR of 170, and there's nothing wrong with overkill. And it's probably quieter th

I appreciate the upvote. I was blissfully unaware that down voting was even a thing here. I am pretty new to this forum and hadn't noticed. Kindof sad that I know that now! I appreciate all your calculations.. I have done much of the same trying to find the right combo of dB, CFM, and cost. And yeah

It has the highest CADR while being quieter than your two options listed. I have one in my living room and it’s great, although it energy inefficient. It’s essentially just a modified Chinese filter fan with a grill. I also have an IQair healthpro plus and wouldn’t recommend it very highly. It’s jus

Well I'm glad IQAir's trying to source more sustainable materials, so kudos to that! That being said, the purifier is very expensive for the air cleaning performance. You will need to run it at the highest airflow speed/setting. IQAir usually publishes Sound Power Levels, but for the Atem Earth only

So, assuming the ceiling height in your master bedroom is 8 ft., absolute minimum CADRs ought to be 560 CFM. Because your husband has cancer and you have allergies, higher CADRs would be better. The Smart Air Blast MKII has a composite CADR of 559 CFM, which right at the minimum. Its CADR is not bro

Freestanding purifiers can't overcome walls or doors. You need one for each room or area. See Rule 4: Information For Air Purifier Requests. I don't know what you consider quiet. AHAM recommends Clean Air Delivery Rates (CADRs) should be at minimum 2/3 of your room's area. This assumes an 8 feet hig

We would need your living room's length x width x height to determine good particulate Clean Air Delivery Rates (CADRs). See Rule 4: Information For Air Purifier Requests. The Coway Airmega ProX definitely has higher particulate CADRs and is quieter than the IQAir HealthPro Plus XE.

We need to calculate room volume since your ceilings are higher than 8 feet. This is covered under the "CADR Particulate Types and Sizing" heading in our How To Choose An Air Purifier for Particulates [Comprehensive Guide]. Bedroom: 160 sq. ft. × 10 = 1,600 cubic feet volume. 1,600 cu. ft. ÷ 8 ft. =

Yes, Coway has had odor issues with its filters, and still does. Then again, most brands have, including Winix:https://www.reddit.com/r/AirPurifiers/comments/1hht4r6/do_all_purifiers_or_their_hepa_filters_have/ https://www.reddit.com/r/AirPurifiers/comments/1hhtma2/horrid_smell_and_bad_filtering_from_new_winix/ B