Coway

Airmega 100

Coway Airmega 100

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Overall

#232 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score50% positive
9
3
6

Top Pros

Top Cons

Last updated: Jun 18, 2026

Reddit Reviews

Reddit Iconanxiousgirl94
5 months ago

Thanks for replying! I ended up ordering the Coway airmega 100 yesterday out of desperation 😭 wish id known about the Winix, it looks good! I hope its helpful for your brother! Ive seen those scratching stars, they look good. However I think my little one is a bit too young to be able to use something like that yet. Also theres a site called MooGoo which make skin friendly products for eczema, sounds like your brother is not a baby, so that might be worth looking into for him!

Reddit IconBabyBoy20000000
4 months ago

I have a couple! The AirMega 100 is the smallest I have and the air mega mighty ap-1512 is the biggest— I also have the air mega 160 which is a great midsize one if your space isn’t too big. https://cowaymega.com/products/mighty-ap-1512hh?

Reddit IconBruhBacon
7 months ago

I just wish the Airmega 100 was like... 2 inches (5 cm) shorter in all dimensions. It seems just bulky enough to be kinda a pain to move around. The Levoit Core 300 is about the same dimensions as well. I've been eyeing the Airmega 50 because it's much smaller, but at the cost of CADR (my bedroom is very tiny though). Yes - the Levoit is not "technically" HEPA because they've not gone through the actual qualification / testing process (or something along those lines). However, people do say the filters are still very good and work as described and to the same degree as HEPA. Since I have a Coway already, I'll probably stick with the Coway lineup, just because I haven't had any issues and I've developed a trust of the brand. I'd maybe look into higher-tier brands like Allen or IQAir in the future if I really want to go all out. But after being burned by Blueair, I'm hesitant to try other entry to mid-tier brands. With that being said, I have a Levoit vacuum that I do really like and I would probably try one of their purifiers in the future.

6 months ago

Did you make the “IKEA enclosure” or did it come with the printer? Some of them come with ventilation w/ filters. Despite my recent post about my makeshift printer purifier, FDM is (relatively) very safe. At least compared to resin printing. I print both PLA and PETG and haven’t had any issues. I don’t have an enclosure. The only material I’d avoid is ABS without proper ventilation. With your enclosure any airborne sediment is going to either collect on the inner walls or fall back down. It’s unlikely that any significant amount of VOCs will go beyond that. People here will most likely say, “that budget is too low for anything meaningful to protect against VOCs.” But, I’d say if you’re really worried about it and want something for peace of mind (knowing that it’s an imperfect solution) you can look at the Levoit core 200, Coway Airmega 100, or other SFF purifiers. Their CADR is pretty low and they have only a little bit of carbon, but it would at least be something. The reality is smaller / more economical purifiers are going to be limited with their performance. And that removing VOCs requires (large amounts) of carbon, you’re in a tight spot. However, unless you have existing medical conditions or are incredibly sensitive to air pollutants the risk factor is pretty low. I’d personally either: 1. just rely on the enclosure. 2. Create a makeshift vent with a PC fan + carbon sheet 3. Add a small purifier as close to the enclosure as possible.

Reddit IconEMcTx
23 days ago

I got a Daikin air purifier a couple of months ago, and I recently moved it into my living room, after using a Coway Airmega 100. I looked at my desk today, and there's definitely less dust than when I had the Airmega in here. I feel like the Daiken is more sensitive. I wish there were no dust, but I'll definitely take a reduction!

Reddit Iconenfurno
5 months ago

Do any of your coway unit make a strange rubbing notice in the motor? This seems pretty common from what I can find and I just purchased an airmega 100 for a small room and it has that strange noise. It almost sounds like a bearing or something may be impeding the path of the fan just oh so slightly.

Reddit IconExisting-Piano-4958
4 months ago

Second vote for stainless steel litter boxes. The plastic ones really hold onto the pee smell. We also clean the boxes at least 2x daily and after every poop. We have 4 Coway Air Mega 100s in our 2000 square foot home that run continuously. We have 5 cats and when I come home, I just smell the pleasantness of our home. Sometimes I used to smell a hint of "animal" smell, but switching to stainless steel litter boxes and adding 4 air purifiers has eliminated that!

Top Air Purifiers on Reddit

1
Coway Airmega AP-1512HH Mighty

Coway

Airmega AP-1512HH Mighty

87% positive of 128 users

Durable, effective for allergens/odors, but loud on high.

$169 Amazon
2
Levoit Vital 200S-P

Levoit

Vital 200S-P

85% positive of 123 users

Smart, effective dust/odor; some find replacement filters pricey.

$159 Amazon
3
Winix 5500-2

Winix

5500-2

78% positive of 152 users

Budget king, durable; poor VOC removal, Plasmawave disliked.

$374 Amazon
4
Coway Airmega Mighty

Coway

Airmega Mighty

85% positive of 97 users

Durable, great for allergies/dust, responsive auto-fan.

Check priceAmazon
5
Winix 5510 & 5520

Winix

5510 & 5520

83% positive of 96 users

Good value, durable, effective for pets; carbon filter issues.

$135 Amazon

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