Coway
ProX(W)
Based on 79 Reddit mentions
$670.99
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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.
Best air purifier money can buy?
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
...sissasassafrastic in r/AirPurifiers
January 27, 2026 12:01 AM
5
aesthetic/stylish air purifier with high CADR / efficacy recommendations
Per the AHAM 2/3 rule, a 732 sq. ft. apartment would need minimum CADRs of 488 CFM. The most stylish is probably the IQAir Atem X. It's made in Germany. But it has a top Smoke CADR of 415 CFM. It's also very expensive at $1,399.99. The Coway Airmega ProX has a top Smoke CADR of 568 CFM. It has wheel
...sissasassafrastic in r/AirPurifiers
April 3, 2026 5:09 PM
4
Coway Airmega Pro X vs IQ air health pro plus xe
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
...NumerousAssumption47 in r/AirPurifiers
April 25, 2026 5:48 AM
2
Has anyone purchased and tested the IQ Air Atem Earth?
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
...sissasassafrastic in r/AirPurifiers
February 16, 2026 3:32 PM
2
Deciding between Winix C909 and Coway Airmega 400 (Bay Area, CA, USA)
Hi, I created the newest iteration of the Buying Guide. I didn't include the Coway Airmega 300 because in the past, the Coway Airmega 400 would be discounted frequently enough to justify its purchase instead. Annoyingly, there were no good Black Friday or Christmas sales for the Airmega 400 or Airme
...sissasassafrastic in r/AirPurifiers
January 6, 2026 12:31 AM
2
Air purifier for 1200 sq Ft apartment
See the AutoModerator comment. Purifiers aren't good at reducing visible dust particles as they're large and heavy compared to "invisible" pollutants like PM2.5. An even stronger argument could be made for dog hair. If you don't have one already, I'd get a good quality bagged vacuum cleaner with a H
...sissasassafrastic in r/AirPurifiers
February 27, 2026 9:01 PM
2
One Purifier or Two for my 670 sq. ft. area
There's no app for the Coway Airmega ProX, so you'll have to use buttons on the purifier. Yes, it can be run continuously on the same speed. (Manual speed choices are speeds 1, 2, and 3.) There's also a "Turbo Mode". According to the ProX owner's manual: "Turbo mode accelerates the air purification
...sissasassafrastic in r/AirPurifiers
August 26, 2025 11:21 PM
2
Air purifier for large room
Coverage ratings are included, but I would weigh Clean Air Delivery Rates (CADRs) first and foremost. Avoid UV light treatments on (almost all) consumer-grade air purifiers. Per the AHAM 2/3 rule, minimum CADRs for a 700 sq. ft. room (with an 8 ft. high ceiling) should be 467 CFM. However, having al
...sissasassafrastic in r/AirPurifiers
September 28, 2025 2:57 PM
2
Anybody experienced with this purifiers? Are they good?
For your living room and bedrooms, what are the dimensions? This would be length x width x height. Room volume is needed to calculate proper particulate Clean Air Delivery Rates (CADRs). Does anyone have allergies or is there a chance of wildfire smoke in your area? There are other circumstances whe
...sissasassafrastic in r/AirPurifiers
July 14, 2025 1:39 PM
2
Quietness to fight pet dander
Purifiers will do very little for pet hair unfortunately. It's very large and heavy compared to "invisible" pollutants like PM2.5 and PM0.1. They can help with dog dander. I'm not a fan of Rabbit Air as their purifiers have low Clean Air Delivery Rates (CADRs) and big price tags. The Rabbit Air A3 i
...sissasassafrastic in r/AirPurifiers
October 17, 2025 8:43 PM
2