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Coway Airmega 400/400S Air Purifier Review

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By Best Choice team
Checked icon Last updated - April 1, 2026
8.9

Verdict overview

  • Easy installation 9.8
  • worth the money 7.2
  • materials Quality 9.9
  • Noise level 9.3
  • Simple to clean 9.6
  • Sheerness 7.4
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Pros
  • 99.99 particulate removal
  • Reduce VOCs odors
  • 12 month lifespan
Cons
  • Possibility of reduced benefit.

Tech specs

product dimensions10.88 x 1.75 x 14.25 inches
importImported
item weight1.5 pounds
assembly requiredNo
perfumeUnscented
included componentsTrue HEPA Filter, Active Carbon Filter
warranty descriptionN/a.
fabric typeNullify
batteries requiredNo
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Product Overview

I recently acquired the Coway Airmega 400/400S Air Purifier, and I must say that I am very impressed by its performance. The air purifier is designed to capture and reduce up to 99.99 of 0.1 micron particles in the air, including pollen, pollutants and other allergens, as well as reducing odors from food, cigarette, and pets. It features a True HEPA filter and an Activated Carbon filter which work together to create a clean living space for you and your family.

The Coway Airmega 400/400S Air Purifier is incredibly easy to install and use. All you need to do is plug it in, turn it on, and let it do its job. It has a sleek design that fits easily into any home decor, making it a great addition to any room in your house. The air purifier also features an intuitive LCD control panel which allows you to easily adjust the settings according to your needs.

One of the most impressive features of the Coway Airmega 400/400S Air Purifier is its ability to reduce odors from food, cigarette smoke, and pets. This is thanks to its powerful Activated Carbon filter which absorbs odors quickly and efficiently while keeping your air fresh and clean. The True HEPA filter captures and reduces up to 99.99 of 0.1 micron particles in the air while reducing fumes such as NH3 and CH3CHO as well.

The Coway Airmega 400/400S Air Purifier is perfect for anyone looking for an efficient yet affordable way to keep their home clean and free of allergens or odors. It has a MERV rating of 13 which ensures maximum filtration effectiveness while still maintaining an energy efficient operation mode that won t break the bank when it comes time for your utility bill payments! Additionally, the air purifier has an average lifespan of 12 months with 1560 sq ft coverage so you can continue breathing easy without having to worry about replacing filters all too often!

Overall, I highly recommend the Coway Airmega 400/400S Air Purifier for anyone looking for an effective yet cost efficient solution for their home air quality needs! The impressive combination of True HEPA filter technology with Activated Carbon filter makes this product one of the best on the market right now when it comes to keeping your home free from pollutants or odors. Furthermore, its energy efficient operation mode combined with its long lifespan means that this product is sure to save you money in the long run!

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Frequently asked questions

  • What is the filter system for this air purifier?Arrow icon
  • How much coverage does it provide?Arrow icon
  • Does this air purifier reduce odors?Arrow icon
  • Does this air purifier reduce allergens?Arrow icon
  • What is the warranty on this air purifier?Arrow icon

The secret behind our reviews

By Best Choice team

Best Choice Team is your go-to source for curated product recommendations across various categories. Leveraging years of industry experience and advanced AI technology, we analyze data from multiple sources to bring you the most relevant and up-to-date product lists.

Our AI-driven approach allows us to streamline the selection process, ensuring that the products we feature align with current market trends and consumer preferences. We aim to provide content that helps you navigate your purchasing decisions with greater ease.

Users reviews

89% of reviewers would recommend to a friend, Based on 1,794 Reviews

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