Airmega 300S

I’ve got a Coway 300S in the main living area of my house (kitchen, dining room, living room), and a Coway 1512 in my bedroom. Both have been great! Highly recommend Coway.

Have had Coway Airmega 300s for years

This is the coway airmega air purifier which has a coverage area of (I think) 1200 sqft. We keep it in the hallway and it actually gets to green within an hour. The aqi in my area is 222 right now (i haven't seen the aqi monitors here being sprinkled with water or anything but there is constant sprinkling of water on roads to keep the pollutants grounded) but even when the pollution was at peak, this one could purify the air to green in around similar time.

I got coway last year when I started getting breathing problems due to all the pollution. Unless we can somehow control the stubble (parali) burning, the city is doomed!

It's coway airmega 300S Currently out of stock

It's coway airmega 300S It has costed me somewhere around 40k last year

Yeah my air mega 300s used to be good but can’t even log in anymore. Levoit Everest air is a pleasure.

Considering the current Coway price tags, I prefer Alen. I have the Coway Airmega 400S and 300S and then recently got the Alen 25i for my small office. Alen hands down has the most pleasant sound. Plus they come with a lifetime warranty if you buy their filters which are reasonably priced.

I have an American Eskimo dog bought this exact purifier expecting a miracle- it will not trap any dog hair so I bought a real air purifier (Coway 300s) for dander and dog smell which has been great. If you have a fluff dog get a robot vacuum like Roborock to vacuum everyday it’s been a life changer

...different websites display different levels of expertise or due diligence? There are traditional and online media websites "reviewing" purifiers whose methodologies, criteria, or testing will vary. Many product review articles authors are journalists, not HVAC or air quality engineers. And the underlying goal of some websites may be to drive viewers towards referral or affiliate URLs to make money. You have to compare apples to apples. RTings.com has tested only 2 Coway models and 2 Winix models. There are no Smart Air, IQAir, Alen, or Medify Air units. I'm looking forward to RTings.com testing more purifier models. But right now, the test selection isn't impressive... there are a lot of Dyson purifiers. As stated on one of your other posts, we generally like Coway for the build quality, performance, and quiet operation. The ProX, 400S, 400, 300S, 300, IconS\*, and Icon\* come with a 5 years warranty. All other Airmega models have a 3 years warranty. Link: [https://cowaymega.com/pages/warranty-registration](https://cowaymega.com/pages/warranty-registration) \*We do not recommend the Icon / IconS, as they have poor CADRs for the money. The Levoit EverestAir is the best purifier Levoit makes with lots of extra features. Some of the CADRs are a bit low (373 CFM for Dust and 354 CFM for Smoke). Top sound level according to HouseFresh is 57.8 dB; note this isn't an A-weighted decibel rating. Warranty period is 2 years. Don't know how the EverestAir's build quality compares to Coway's higher end offerings.

Have you read our [sticky post at the top of the subreddit](https://www.reddit.com/r/AirPurifiers/comments/1jxgjwf/sticky_purifiers_and_dust_reduction/) or the [FAQs wiki page](https://www.reddit.com/r/AirPurifiers/wiki/index/faqs/) entries about dust? Air purifiers aren't good at reducing visible dust as it's large and heavy. I would always avoid Shark. It's a low quality brand and we've had multiple reports of the air quality display not working. Coway purifiers are generally the best quality in the consumer-grade market (although they're more expensive). However, you'd have to buy one with the letter *S* appended to the model name. S-letter models have app connectivity. A great value for money is the Winix C909 sold on Costco.com. It has PlasmaWave, a bipolar ionizer that may be turned on or off. The C909 will be fairly loud on the highest setting called "Turbo" - about 60 dBA according to the Decibel X Android app and it's not very energy efficient at 95W. But purifiers need to be sized by room volume - so please list your room's length x width x height. See **Rule 4**.