8.4
Expert Rating

When you have a newborn, you shouldn’t be looking just for the best air purifier, you should be looking for the best air purifier for baby. And when you are, the Coway Airmega 300S should be a unit on the top of your watchlist for its low power consumption and extremely quiet operation.

Why We Like It – Coway Airmega 300S

The Coway Airmega 300S is a very, very impressive showing. It’s Max2 Filter is just as effective as any three-stage filter despite being a two-stage filter, and its over 1,000 square feet of room coverage is not only powerful enough to clean a room, but an entire apartment!

Pros
  • Pre Filter is Washable
  • Low Power Consumption
  • Quiet
Cons
  • Replacing a Filter is Expensive
  • Heavy

Power/Speed

The Airmega Air Purifiers use pre filters to help you capture a hefty amount of contaminants both large and small. It’s also washable, but make sure you dry it, preferably in the shade, before you reinstall it. If you want an air filter designed for mold specifically, try the Levoit LV-PUR131S. The control panel on the Coway is easy to use and is where you can adjust fan speed between low medium high smart mode auto mode and sleep mode.

Efficiency

Any 300S Air Purifier review just has ro mentioned it’s absolutely astounding room coverage. At 1,256 square feet it can purify a large room and then some. If you don’t need quite that much, check out the Rabbit Air Minusa2. For an air filter this efficient power consumption is at an all-time low too. It should cost you only about $21.00 per year to run. Even less if you use it less than eight hours a day!

Versatility

The Airmega 300S uses Max2 Filters, which is a combination of an activated carbon filter and a green True HEPA Filter, to capture 99.97% of airborne contaminants 0.3 microns and reduces 99% of volatile organic compounds and fumes. The filter indicator light lets you know when filter replacement is required, but filter cost is a little high for this model. If you like regular filter HEPAs, check out the Levoit H132.

Durability

The Airmega 300S, at 21 pounds, isn’t exactly the lightest air purifier we’ve seen. But silver lining, if you’re buying this an air purifier for a baby’s room, chances are you won’t be moving it out anytime soon. Another plus, the sound ranges from 22-52dB. And even on the highest sound the unit shouldn’t be more than a little white noise. Baby should be able to sleep just fine with it on.

Value

The 300S can connect to wi fi and is compatible with Alexa. It also comes with a smart sensor which is an indoor air quality indicator. This real time air quality tracking is useful when you have the unit set to auto mode. This way, you can just set it and forget it. If not, a mode like sleep low should be enough to clean a room and keep costs down.

Coway Airmega 300S Wrap Up

The Airmega 300S is an impressive piece of machinery by Coway that is sure to get onto people’s favourite air purifiers list. Filter replacement can get expensive, unfortunately, but you’ll only be doing it every year or so depending on how much you use it. But on the plus side it cleans your entire home, not just the baby’s room!

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8.4
Expert Rating
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Michael Iaboni

Michael Iaboni is a Canadian Freelance Writer and Editor. He graduated from York University with a Degree in English and Creative Writing and then attended Queen's University where he obtained a Professional Editing Standards Certificate. He is a member of Editor's Canada and, in his spare time, enjoys reading, writing, soccer, and gaming.

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