Coway

Airmega 350

Coway Airmega 350

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Overall

#70 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score68% positive
15
2
5

Top Pros

Top Cons

Last updated: Jun 16, 2026

Reddit Reviews

Reddit IconAnnual_Grocery9557
2 months ago

The green color is for marketing.I thought the same thing.The green hepa is used on several of their machines. On sale you could buy 3 off the Coway Airmega 450's.The Coway 350 lacks the laser sensor,wheels on the bottom,and less airflow. I bought the 450 for less than $350 and the 350 for $239. If odor control is not an issue buy a couple IQAIR Atem X and skip the Atem Earth.

2 months ago

I have several IQAIR Healthpro purifiers.4 of the compact model and 2 of the model with the carbon filters. I also have an Austin Air and 2 Coway Airmega 400's. Recently I bought the 350 and the 450. The IQAIR purifiers are the best quality wise and offer the better filters which filter down to.003. The Coway machine aren't sealed machines but are still ok. You need to see the IQAIR Healthpro in person to make sure they will look ok with your furniture design. I don't mind the cleanroom look. I got the Coway Airmega 450 for about $350 on sale and it moves alot of air but is noisy on the turbo mode. I think you should try them out off Amazon and return the ones that don't work in your home.

Reddit IconBrilliant-End4664
8 months ago

Coway Airmega 350 has been amazing.

4 months ago

Definitely Coway. I love my 350.

2 months ago

Coway Airmega 350/450 are amazing.

3 months ago

Coway Airmega 350 is amazing. Also Winix 5510. Personally I'd go Coway.

3 months ago

Neither. Coway ftw. 350 or 450.

3 months ago

Yes. They are amazing. I want to buy another one for my basement.

5 months ago

Id get the Coway Airmega 350/450 for the main living space. The more changes per hour the better. Winix 5510 for smaller rooms and bedrooms.

7 months ago

Coway Airmega 300/400 or 350/450 for larger open spaces. Winix 5510 for bedrooms.

7 months ago

Either one is fine. 300/400 or 350/450. I have the 350 and love it. I'm using it with 2 x Winix 5500-2.

Reddit IconBruhBacon
7 months ago

I’ve been impressed with how quiet Coway has been. I’ve got the Airmega 350, but I’ve heard most of their models are pretty silent. What I’ve found too is that even on higher settings, and it being louder, the noise is more of a deeper “woosh” rather than a higher pitch “wish” sound (if that makes sense).

6 months ago

I’ve got the 350, and vacuumed it for the first time a week ago or so. Very easy, no issues, and took about 60seconds. Slapped that bad boy back into the machine and turned it back on. I’d also recommend vacuuming the outside grills of the 350 too as I found dust can sometimes collect between the grooves too. Again super easy and quick to do.

Reddit IconClassic-Pair5805
10 months ago

Im between the winix t810 and the coway 350 or 450. Its so hard to know what to pick haha

10 months ago

Ended up just ordering a used like new 350 and 450 for pretty cheap. I have a small apartment anyway. Gonna put 350 in my bedroom and 450 in living/dining/kitchen lol

Reddit IconDXbadWX
9 months ago

I have a coway airmega 350 and for the first day it smelled like a new car or a ‘fresh’ kind of scent when it ran on high AND I stood directly over the top of it with the air hitting me. After the second day the slight smell was gone.

Reddit Icon_geesegoose
9 months ago

For nurseries that size, I’d go with the Coway Airmega 350 and run it on low. It's quiet and you can swap in the Intense Smoke+ filters for extra VOC gas capture

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