
Coway - Airmega 250
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Last updated: Dec 23, 2025 Scoring
firstly-whatever you want a 'purifier' to filter out has to be able to get to, into and through the device. i've yet to see a consumer level air filter that's strong enough to stir dog hair/dander up off the floor. for dust ? they all suck. i'm in colorado, very dusty area. they all suck. any good filter will clog quickly by definition. remember that ;) having said that, i use a coway 'airmega' in my bedroom and i'm fairly pleased w/ it. has a carbon pad for odors, filters out some dust, smoke, etc. they will all have yearly filter costs-generally anywhere from 50-200 bux/yr., mebbe ? none of them that i've seen are anything to sneeze at. ;-p
r/PetPeeves • What air purifier are you using for your pets? Need recommendations! ->Agreed! And they now offer different filters depending on what is most important to you to filter: one for smoke, one for allergens, etc.
r/BuyItForLife • The Best Air Purifiers? ->I have the Coway Airmega and an Austin bedroom machine, and they seem to be equally good. The Austin cost significantly more.
r/Allergies • Whats the best hepa filter air purifier? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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Have the IQ air does not catch dust or similar. I ended up buying a.Blue air that does and running both. The air quality that comes out of the IQ air is excellent, but if dust is your issue, is not gonna help. Blue air smells like plastic in comparison.. tried the Conway and there was so much plastic offgassing. I returned it..
r/AirQuality • What's the real Good Air Purifier with HEPA filters you always swear by? ->I got a Coway Airmega because it was highly reviewed on the Wirecutter website after my previous Levoit broke after only a couple years and wasn't fixable (circuit board inside was fried).
r/parrots • Any recommendations for air purifiers? Ignore the mess, I'm currently in the middle of a deep clean in my room. ->We have two Coway Airmega units, one on either side of the house. They have been on 24/7 for several years now. Maintenance and cleaning are very minimal. Cost is about $150-200, although there are larger units based on how big of an area you need to filter. We are very happy with them! Whichever purifier you choose, I highly recommend you look into one with a replaceable HEPA filter. Other filtration methods just won't give the same results.
r/homeowners • What are the best air purifiers for home currently? Do you notice any difference when using them? ->Buy the Coway air mega it usually goes on sale pretty often. 10/10
r/CleaningTips • Air Purifier sucking dust in my room ->Coway airmega it's excellent. I have mine going 24 hours a day and it senses everything. It also filters the tiniest particles.
r/AirPurifiers • Air purifier recommendations? ->The airmega. You can buy filters specifically for dust. There's 3 different types of filters i believe you can buy, the original and two more alternatives
r/AirPurifiers • Air purifier recommendations? ->This is the only correct answer. Don't get air mega aim tho that's a scam
r/BuyItForLife • The REAL best air purifier - I HATE DUST! ->मैं दो बार Coway (कौवे) बदलवा चà¥à¤•ा हूं अमेजन पे। पहला Box बà¥à¤°à¥€ हालत में आया लौटा दिया, उस समय 800 का cashback था। फिर दूसरा मंगाया, उसका drum fan का à¤à¤²à¤¾à¤‡à¤¨à¤®à¥‡à¤‚ट आउट की वजह से सà¥à¤ªà¥€à¤¡ बढ़ते हà¥à¤ वाइबà¥à¤°à¥‡à¤¶à¤¨ करता था, वापिस। कौवों वालों से पूछा, बोले नया सà¥à¤Ÿà¥‰à¤• आ रहा है। आज (24.11.25) को आया नया, पर डिबà¥à¤¬à¥‡ की हालत वही पहले जैसे, "पर इस बार outer box छोटा aur Air purifier का material हलà¥à¤•ा है", खासकर पता front frame (air inlet side) से चल रहा है, पहले वालों में hard और sturdy था। Pre-filter à¤à¥€ हलà¥à¤•ा लग रहा है। कà¥à¤¯à¤¾ किसी के पास Coway airmega है नवंबर 2025 से पहले का batch? नीचे किसी à¤à¤¾à¤ˆ ने लिखा à¤à¥€ है China वाला मॉल तो नहीं पेल रहे ये अब à¤à¤¾à¤°à¤¤ में वैसे à¤à¥€ और देशों के मà¥à¤•ाबले inferior quality आती है।
r/delhi • View on Reddit →The Coway Airmega 250 and 250S are on sale for under $250.
r/AirQuality • View on Reddit →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.
r/AirPurifiers • View on Reddit →The airmega. The number one pick from wirecutter for years now.
r/AirQuality • View on Reddit →Been running coway airmega 24/7 since 2018. Replace the filter every year and bob's your uncle.
r/BuyItForLife • View on Reddit →I have 2 Coway airmegas that are super quiet that I've had for nearly 2 years. Do you change your filters regularly? Only one I would not recommend is Winix-I had one of the smaller models and its noise was very inconsistent and it was poorly constructed compared to the Coway Airmega and the Honeywell Whispure (a tiny model).
r/BuyItForLife • View on Reddit →Anecdotally, I have two big Airmegas running in fairly small spaces and I can't tell a difference in air quality between when they've been running and when they haven't. I don't get what the point is.
r/BuyItForLife • View on Reddit →I've got a Coway airmega in our bedroom, and a BlueAir in my office at work. I love both of them... I'm a therapist and work in an 8'x10' room talking to people for an hour 5-6 hours some days. I think the BlueAir is a big reason why I haven't picked up any of the respiratory stuff some clients have come in with (well, that + vaccines + mindful hand washing/sanitizing). It's also pretty quiet which is important to me. I'm planning on picking up another BlueAir or two for the rest of my house this spring. The pricepoint is kinder than my Coway, and it's much quieter.
r/moderatelygranolamoms • View on Reddit →I've had Coway AirMegas, Winix, and Whirlpool Whispure, and Coway is by far the best home purifier in my opinion. I have an AirThings air quality monitor and a dust allergy, and these filters make a difference. You do need to clean the Coway prefilter regularly, but it's easy to do. I didn't know they sold off market filters so I'll have to look into that because the filters can be costly.
r/BuyItForLife • View on Reddit →I have the Coway and had it for the last coupe of years B it I recently switched to the blueair purifier and am very happy. They also happen to look good.
r/AirQuality • View on Reddit →I have a coway airmega in the middle of a ~1k sq ft apartment. It frequently turns on a higher cycle after we cook on the gas stove down the hall
r/AskNYC • View on Reddit →Id say no, proprietary airfilter. I use [https://cowaymega.com/products](https://cowaymega.com/products) and get 3rd party filters to replace it. I also turned it into a fan by using plastic vacuum hose.
r/Costco • View on Reddit →Coway Airmega; which model depends on the size of the space. Make sure it has a charcoal filter.
r/fednews • View on Reddit →huge fan of Coway Airmega. filters last a long time, it has a mesh prescreen you take out and clean every 3 weeks or so, and it's both quiet and has a good CADR. And it's very slim and doesn't take up much space!
r/ZeroCovidCommunity • View on Reddit →I just recently bought 2 coway airmegas. No smell at all.
r/AirPurifiers • View on Reddit →Coway airmega gets my vote. Got 2 on amazon since pademic and they've been pretty good by far.
r/moderatelygranolamoms • View on Reddit →You seem to understand what you need. You took into account your high ceilings which is good. Most CADR is measured with the average 8 foot ceiling so your numbers are higher which you already posted. Keep in mind CADR is measured at maximum fan speed, so you'll want a purifier that can deliver CADR over your actual square footage so that way you can run the units at medium speed. Some people run them at max, but most do medium since it's a tolerable noise level. Since you've been on this sub, I assume you know that purifiers are only good to clean the air in the room they're placed in. They don't clean air in other rooms because of the way air moves around homes, which isn't much. I'm no expert and I'm kinda new to purifiers too and there's much more knowledgeable people on this sub. I can't speak to other brands, but I like my Coway Airmega 250 that I got. It says it covers up to 930 sq. Ft. And 2 air changes per hour in that amount of space at max speed. I find that the unit may be a little small for the area I'm cleaning which is the living room and kitchen. I keep it positioned between the 2 and it takes longer to clean the air in each room positioned like that vs. being placed in the actual room, but it gets the job done I feel like and I'm happy with it. Not sure how much help that was, but I would look at the Coway Airmega series. Pricy, but good units. I haven't tried any others but I know air doctor is good but very expensive. Good luck
r/AirPurifiers • View on Reddit →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!
r/BuyItForLife • View on Reddit →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.
r/AirPurifiers • View on Reddit →Air purifiers can't go into other rooms generally speaking, so you will need multiple purifiers. Whatever room they're in you can expect the air to be exchanged regularly, but even with a good one in the hallway it would barley exchange the air in the rooms because of the way air circulation works. Having fans going in rooms and pushing air into the hallway to get purified is one solution, but the best solution will be multiple air purifiers. If I were you, I'd get a purifier for the computer room and bedroom. I have a pretty small house and I have a Coway Airmega 250 and I love it. I keep it between my living room and kitchen and it does a good job of purifying the air in those rooms. Sometimes I take it to my bedroom at night. It's kinda heavy but it's easy enough to move
r/AirPurifiers • View on Reddit →Coway has a better reputation than the models Costco carries. Love our Air Mega. Bought directly from Coway at a steep discount. Just have to wait for sales.
r/Costco • View on Reddit →I have a coway airmega 250. I have been happy with it.
r/AirPurifiers • View on Reddit →I have the Coway Airmega and an Austin bedroom machine, and they seem to be equally good. The Austin cost significantly more.
r/Allergies • View on Reddit →Another vote for Coway Airmega. I've had several since 2020 and still going strong.
r/BuyItForLife • View on Reddit →We have a 2500 sq ft home so we have several air purifiers. I went off wirecutter's list and got Coway Airmega for the rooms with higher ceilings and Levoit for the kid rooms and office (where the litter box is). We have had them for a year and I'm happy with them. They've significantly cut down on daycare illness transmission within our household. Instead of all 4 of us getting sick it's 1 kid and sometimes 1 parent per illness.
r/moderatelygranolamoms • View on Reddit →The Coway airmega is the best overall imo
r/AirQuality • View on Reddit →I've been using a Coway Airmega for a while, and yeah, it made a noticeable difference after a few days.
r/homeowners • View on Reddit →This is the only correct answer. Don't get air mega aim tho that's a scam
r/BuyItForLife • View on Reddit →I bought an Airmega for our bedroom a year ago. My wife says my nighttime snoring has almost completely stopped. We ended up being so happy with it we bought another for the DR/LR.
r/TwinCities • View on Reddit →Yep, we're a 4 Coway household here too.
r/BuyItForLife • View on Reddit →I would also say my Coway Airmega is one of the best investments I have ever made. It's amazing how much it can grab and filter out. They say the filters should last a year, but we have it constantly running in a larger room and probably change the filters every 3-6 months. Closer to 3 when we have the AC wall unit on blast thru the summer. We've also had terrible Smokey days from the Canadian wildfires in my area and when I last replaced my filter, it was almost black so it was working hard! 2 years of having it and no issues.
r/buyforlifetips • View on Reddit →I have a AirMega 250 and another cheaper unit in my "cat room" (opposite side of house). I prefer the AirMega in bedroom not as light polluting. I change the filter once a year and its around $80 for the unit.
r/AirPurifiers • View on Reddit →why not go for airmega 250 coway instead of 150? It has bigger coverage and it would better cover your bedroom space. If considering Xiaomi, go for simple 4 (not the pro) since pro has ionizer which generates ozone ( not good) philips- not sure how is the filter availability situation presently but I have heard in the past replacement filters were not available easily Qobo- no idea Dyson- not needed, coway or Xiaomi can clean the air as good as Dyson
r/delhi • View on Reddit →I have a Conway Airmega for my chicken brooder (chickens create a ton of dust as they grow, and they have to be inside for a few weeks cause they don't have feathers yet) and it really cuts down on the dust.
r/BuyItForLife • View on Reddit →I got some Conway ones on sale for a main level and bedroom in my house a while back. My plan was to help alleviate dander, allergens, and fire smoke. I can't say I have any empirical evidence of their efficacy, but I'm glad I have them. If you have a couple hundred bucks and no central air, I think it's worth it.
r/TwinCities • View on Reddit →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.
r/Professors • View on Reddit →