Coway
ProX(W)
Based on 79 Reddit mentions
$670.99
We may earn a small commission.
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
How long for new-filter smell to dissipate on the Coway Airmega ProX?
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
...FairManner1292 in r/HouseFresh
April 25, 2026 5:41 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
Air purifier recommendation for open living room
Assuming you haven't picked something out already... The Medify Air MA-112 (V2.0) is powerful, but loud on the top airflow speed/setting. Per the AHAM 2/3 rule, a 1,872 sq. ft. space would need minimum CADRs of 1,248 CFM. So any one consumer-grade purifier will fall short. I would go with the Coway
...sissasassafrastic in r/AirPurifiers
March 26, 2026 6:57 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
Allergic to dust/dust mites and dander: are these good options?
With dust mite allergens, you can try reducing relative humidity (RH) below 50% for a prolonged period. (Another study recommended RH of 45% or lower if I recall correctly.) This should kill them off. For the bedroom: of the two, I would tend to choose the Coway Airmega 350. You'll definitely need t
...sissasassafrastic in r/AirPurifiers
October 4, 2025 6:58 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
IQAir Multigas Lackluster Performance on NO2
Nice! Other studies have shown formaldehyde doesn't have good adsorption onto carbon, so it's interesting that here it's nearly as effective for formaldehyde as it is for a simple alkane (n-heptane). That's probably because Oransi's carbon has been modified with potassium permanganate, which is know
...theorist9 in r/AirPurifiers
May 5, 2026 10:28 PM
1