ProX(W)

Coway

ProX(W)

109 positive 0 neutral 13 negative

Based on 122 Reddit mentions

$666.99

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Sentiment summary across the product areas Reddit users mention most.

Reddit mentions

Original Reddit posts and comments behind this analysis.

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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

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sissasassafrastic in r/AirPurifiers

January 27, 2026 12:01 AM

5

Deciding on which levoit model as a pet owner

Purifiers aren't good at reducing pet hair, if that's a benefit you're after. It's very large and heavy compared to microscopic pollutants like PM2.5. Only hair floating very close to a purifier's intake(s) will be captured. The two Levoit Vital models are definitely better than their Core series. T

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sissasassafrastic in r/AirPurifiers

July 11, 2026 2:09 PM

3

Looking For A Genuine Top-Tier Air Purifier For 3 Rooms Of My Apartment

Housefresh.com's reviews are useful, because they measure sound and CADR using a consistent methodology, allowing you to compare among units. They've tested the three you mention. I'd suggest making a table of CADR and noise at each fan speed from their reviews. That's what I did. Based on a quick l

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theorist9 in r/AirPurifiers

May 13, 2026 4:27 AM

3

I’m on the hunt for the best true HEPA air purifier. Any suggestions?

For 600 ft^2, and assuming 8 foot ceilings, you've got a volume of 600*8 =4,800 ft^3. To get 5 ACH, you need a CADR of 4800/12 = 400 CFM. There's no single purifier that gives that CADR without being loud. The closest is the Smart Air Blast MKII, which, according to Housefresh.com, is 41.9 dBA at 37

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theorist9 in r/AirPurifiers

July 23, 2026 6:06 PM

2

Which air purifier is the quietest at level I (not sleep mode) for ~380 sqft family/home theater room?

Yup, I found the same thing with my Winix 5510: it's only non-intrusive on night mode, which only gives 56 CFM. At 380 ft^2, and assuming 8' ceilings, you need 253 CFM to give you 5 ACH. There's no single air purifier that delivers that quietly (the Smart Air Blast Mini Provides 272 CFM on speed 1,

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theorist9 in r/AirPurifiers

May 29, 2026 7:58 PM

2

Higher quality splurge for wildfire smoke

Just an FYI: many purifiers are good at removing particulates or gases/vapors/odors/VOCs, but not both. Wildfires often produce high concentrations of gases which require many pounds of activated carbon or other sorbent media. Chemically untreated sorbents do not have high removal capacities for all

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sissasassafrastic in r/AirPurifiers

July 16, 2026 11:54 PM

2

Best Air Purifier for medically fragile kid with lung issues. Concerns Wildfire smoke, wood burning stove, pet dander, mold

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

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theorist9 in r/AirPurifiers

April 21, 2026 6:15 AM

2

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

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NumerousAssumption47 in r/AirPurifiers

April 25, 2026 5:48 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

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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

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sissasassafrastic in r/AirPurifiers

March 26, 2026 6:57 PM

2

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