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
Apartment smells like weed/cigarettes and it's suffocating me. Desperate for relief before I go bankrupt staying at a hotel
FWIW, I have bad environmental allergies to chemicals and smoke, both of which block my nasal passages and result in sinus infections. For years, the air filter I used was the IQ Air HealthPro Plus, which is modestly effective. More recently, I bought a Coway Airmega ProX, which seems to be more eff
...minimus67 in r/AirPurifiers
June 17, 2025 4:15 AM
6
Allergy-Focused Setup (3 rooms) for medium-speed performance + reasonable noise
Levoit will still clean your air. They even publish PM2.5 CADRs for most of their models. While the Levoit Vital series and EverestAir perform very well, they may not have the build quality of the more premium Coway units. Is it better to slightly oversize units so they’re effective on medium/quiet
...sissasassafrastic in r/AirPurifiers
February 23, 2026 11:46 PM
2
Pulmonary Fibrosis- need help with choice
Hello. Very sorry to hear about your husband's IPF. You're right to be wary of ChatGPT. I'm sure it's improving, but I've seen it produce inaccurate or totally incorrect information. Just a quick FYI: purifiers aren't good at reducing visible dust as it's large and heavy compared to invisible pollut
...sissasassafrastic in r/AirPurifiers
December 7, 2025 11:37 PM
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
Need advice for 658 sqft room with 10ft ceilings
No, the Coway Mighty AP-1512HH would be very underpowered for this space in terms of CADRs. Unfortunately purifiers aren't very good at reducing visible dust, as it is relatively large and heavy. See the sticky post at the top of this subreddit and our FAQs wiki page entries. To find minimum CADRs,
...sissasassafrastic in r/AirPurifiers
May 22, 2025 6:35 PM
2
Coway Airmega 400s
4.8-5 represents the minimum recommended Air Changes per Hour (ACH), not CADRs. CADRs are the more important metric. See the AutoModerator comment (and various wiki page entries) about the AHAM 2/3 rule for particulate CADRs. A few notes. First, purifiers aren't good at significantly reducing visibl
...sissasassafrastic in r/AirPurifiers
June 24, 2025 2:19 AM
2
Air Purifier Help for Air Dry Clay at Home
For an extra-large room 650 square feet or more Consumer Reports recommends: Coway Airmega ProX Anything cheaper has just an OK, poor or bad review. Subscription required.
Caprichoso1 in r/AirPurifiers
October 14, 2025 5:52 AM
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
Help Before Black Friday Sales End!
There are some Black Friday [BF] deals already, but I think there may be more to come in the week leading up to Thanksgiving or BF. I would generally recommend Coway first. They're one of the highest quality consumer-grade brands. I think their larger and more powerful models may not be discounted y
...sissasassafrastic in r/AirPurifiers
November 19, 2025 6:56 PM
2