Coway Airmega 250

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TL;DR: Durable, effective for allergens/odors, responsive auto-mode.

Overall

#5 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score92% positive
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Last updated: Apr 26, 2026

Reddit Reviews

Reddit IconArizonagamer710
11 months ago

You have an old car that's awesome! I also have an old car. What kind of car do you have? I drive a 94 Mustang Cobra. I have a coway Air Mega 250, and I have been happy with it.

11 months ago

I have a coway airmega 250. I have been happy with it.

Reddit IconAshamed-Status-9668
7 months ago

The Coway Airmega 250 and 250S are on sale for under $250.

7 months ago

The Coway Airmega 250 and 250S are on sale for under $250.

Reddit IconBigBootyBardot
about 2 months ago

I have a Molekule and it’s sitting stored. The replacement filters are expensive as hell, and I find my BlueAir (the 211+) and Coways (Airmega 250 and 150) to be better. The latter aren’t “smart,” (although I think you have that option now), but I have them plugged in with smart plugs and I like that the Coways signal when the air quality changes like a basic air quality monitor would.

Reddit IconButtBong9000
3 months ago

Yes, because I live in an old building. I have a Coway 1522hh in the living room, and an Coway Airmega 250 in the bedroom

Reddit IconCalmTrials
5 months ago

Highly recommend coway airmega 250 which is out of stock on their website but in stock on Amazon. I bought used like new for a little under 300 US which as of this comment used like new is still in stock. My partner has severe asthma to dust and cats, he was waking up nightly having full asthma attacks. Since we've gotten it a week ago (we run it most of the time) he hasn't had a bad asthma attack. The used like new was brand new for me, it just came in the wrong product box (no original packaging). It was recommended to me here by /u/UncleGurm who is the air pro-ifier.

Reddit Iconchemical_sunset
9 months ago

I’m immunocompromised and always have an air purifier (Coway AirMega 150) running next to my lectern. It’s nearly silent on the lowest setting. I also have a larger one at home (250?) that is EXTREMELY loud, so I wouldn’t recommend a big one. The building I teach in is pretty modern, so I have to assume that the ventilation is quite good even though my classroom doesn’t have any exterior windows. I’ve been told many times I’m quiet/soft spoken (despite feeling like I’m always yelling), so masking while teaching is out of the question for me. I also tell my students on the first day of class that I am immunocompromised and therefore that if I do get sick, I am likely to get very sick and be gone for several weeks (sometimes I include the fact that my body literally cannot make antibodies, which is super fun). This info seems to stick with them, as I’ve had many students email me to let me know they’re sick and staying home because they remembered what I said. I am also pleasantly surprised that most students wear a mask for a few days when they return. I never mention masks at all and have never asked for anyone to wear them, fwiw. I also have a couple bottles of hand sanitizer in the room and use it very, very frequently (literally any time I touch a shared surface). I follow the same precautions in my office. I’ve had COVID three times, and two of the three times it was during the summer (I don’t teach summers). The third time I’m 99% sure I got it at a concert. Your mileage may vary, but I feel like my strategies work fine for me and at the very least give me peace of mind.

Reddit IconCivilized_Monke69
4 months ago

Coway Airmega 250 is very good highly recommend. I have 3 units in my home.

Reddit IconCompanyRemarkable381
6 months ago

I’ve been loving my Coway Airmega 250S for over a year now—super quiet, catches dust and pet hair like a champ, and the air just feels fresher, especially in the bedroom. Filters last forever too if you vacuum the pre-filter regularly. Totally worth it if you’re okay with the upfront cost!

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