Airmega 450

Coway

Airmega 450

9 positive 0 neutral 6 negative

Based on 15 Reddit mentions

Reddit mentions

Original Reddit posts and comments behind this analysis.

Filtered by featurenoise levelClear feature

Coway Sale - Need to pick one

Going by the AHAM 2/3 rule, your 15' x 15' x 10' bedroom needs minimum Clean Air Delivery Rates (CADRs) of 188 CFM. The Coway Airmega 250S can achieve that, although I don't know if you have allergies, high pollution levels, or other circumstances that need increased CADRs. The Coway Airmega 450 doe

...

sissasassafrastic in r/AirPurifiers

September 27, 2025 11:56 PM

3

Over thinking and analyzing every review

I assume the 500 sq. ft. you mentioned in another comment is an open space without walls. (You need a purifier for each room, as they can't overcome walls and doors.) If the 500 sq. ft. is open, you would need a minimum of 334 CFM CADRs. These figures are for normal pollution levels. You may have el

...

sissasassafrastic in r/AirPurifiers

May 30, 2025 9:29 PM

2

Air Purifier Recommendation

I assume you're an expatriate living in the US? Most Americans don't use "whilst". 😉 Unfortunately if you have high levels of particulates (pollen, dust, mold, etc.) and gases/vapors/odors (including VOCs), you generally need two types of air purifier. This is because particulates-focused purifiers

...

sissasassafrastic in r/AirPurifiers

October 3, 2025 12:52 AM

2

Advice for studio spacr

Unfortunately if there is wildfire smoke, Smoke CADR needs to equal your studio's area (assuming an 8 ft. high ceiling). So Smoke CADR should total 900 CFM. FYI: the Smart Air Blast MKII composite CADR of 950 is in m3/h. This coverts to 559 CFM. Do you already own the Airmega 450 and the Airmega 240

...

sissasassafrastic in r/AirPurifiers

July 20, 2025 4:06 PM

1

Top alternatives in Air Purifiers

#1
Core 300

Levoit

Core 300

$84.99

positive
neutral
negative