Coway Airmega 400/400S Air Purifier Genuine Replacement Filter Set, HEPA and Active Carbon Filter, 1-Year Supply
Coway Airmega 400/400S Air Purifier Genuine Replacement Filter Set, HEPA and Active Carbon Filter, 1-Year Supply
Hero image 0 of Coway Airmega 400/400S Air Purifier Genuine Replacement Filter Set, HEPA and Active Carbon Filter, 1-Year Supply, 0 of 7
Coway

Coway Airmega 400/400S Air Purifier Genuine Replacement Filter Set, HEPA and Active Carbon Filter, 1-Year Supply

|73 ratings

Key item features

  • Genuine Components: This filter set contains genuine Coway components, ensuring reliable performance and clean air output.
  • Dual Filtration: Features both a HEPA filter and an Activated Carbon filter combined in one convenient Max2 package.
  • Model Compatibility: Specifically designed for Coway Airmega 400 and 400S air purifier units.
  • Annual Supply: Provides an average lifespan of 12 months (1 year) per filter set.
  • HEPA Efficacy: The HEPA filter captures 99.97% of ultra-fine airborne particles as small as 0.3 microns, including pollen, dust, and pet dander.
  • Odor Elimination: The Activated Carbon filter effectively reduces volatile organic compounds (VOCs) and unpleasant household odors from sources like cooking and pets.
  • Filter Quantity: Each replacement set includes two Max2 Filters, ensuring a complete supply for your unit.
Generated by AI

Specs

Works with, Air PurifierCompatible models, Airmega 400; Airmega 400(G); Airmega 400S; Airmega 400S(G)Minimum efficiency reporting values (merv), 13Microparticle performance rating, 99.97Contaminants removed, Bacteria, Allergens, Dust, Dust Mites, Mold, Odor, Pet Dander, Pollen, Smoke, Viruses, Volatile Organic Compounds (VOCs)Material, Polypropylene

About this item

Product details

Coway HEPA technology helps you breathe safer and cleaner air by clearing away unwanted contaminants. Certified in the world of air purification, HEPA filter work around the clock to remove particles from the air. Our improved, HEPA filter captures 99.97%¹ of airborne allergens as small as 0.3 microns in size, while our new, multi-cubed activated carbon filter eliminates odors and gases from the air. All to give you purer, healthier air. The Coway Airmega Max2 filter is an all-in-one HEPA filter system that combines HEPA filter technology with an activated carbon filter. Please note: Each filter set contains two Max2 filters, one for each side of your Coway Airmega 400/400S.
  • COWAY GENUINE FILTER: The Coway Airmega 400 & 400S filter includes HEPA filter, and Active Carbon filter, ensuring reliable performance and clean air.
  • Compatibility and Lifespan: Compatible with the Coway Airmega 400 & 400S models (B01C9RIACG, B0722YZ1R1, B01C9RIAFS, B071CR9JCH). It lasts up to 1 year, with a convenient filter replacement indicator on the unit to remind you when replacement is due.
  • The HEPA filter captures 99.97% of ultra-fine airborne particles as small as 0.3 microns, effectively removing pollen, dust, pet dander, and other common allergens from your home.
  • Activated Carbon filter reduces 99.5% volatile organic compounds (VOCs) and unpleasant household odors from cooking, cigarettes, and pets
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Works with

Air Purifier

Compatible models

Airmega 400; Airmega 400(G); Airmega 400S; Airmega 400S(G)

Minimum efficiency reporting values (merv)

13

Microparticle performance rating

99.97

Warranty

Warranty information

N/A

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.5 out of 5 stars
stars
73 ratings68 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars78% (57)
  2. 4 stars11% (8)
  3. 3 stars3% (2)
  4. 2 stars3% (2)
  5. 1 star5% (4)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 68 reviews

Nov 10, 2026
Reviewer name: Ella
5 out of 5 stars
5 out of 5 stars review

A Game Changer for My Child's Breathing!

My child has chronic pneumonia and used to experience frequent breathing difficulties. Because of this, I decided to purchase the Coway Airmega 400 air purifier, and I have been using it for the past eight months. Since then, my child has been breathing much more comfortably. Cooking smells, fumes, and steam from the kitchen no longer bother him the way they used to. I am extremely happy with this product. In my opinion, every home should have a Coway Airmega 400!

Review from Coway USA
Helpful?4IBXZIKSOGS3134675268
Oct 29, 2025
Reviewer name: AntonioJG
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Yearly Filter Change

It's amazing how a simple filter change can transform the air in my entire home. A friend who regularly visits, stopped in about a week after the filter change and instantly commented on how fresh my home smelled. He''s a person living with asthma and truly appreciates clean air. That's why I never miss the yearly filter change. It seems expensive, but for a year of fresh, healthy air, that even my guests can appreciate, it a very small price to pay.

Review from Coway USA
Helpful?4IBXZIKSOGS3134675268
reply from Customer Service

Thank you for sharing such a thoughtful review of the Airmega 400 replacement filters! We’re delighted to hear how much of a difference a simple filter change has made in your home’s air quality. It’s wonderful that your guests—even those with asthma—can feel the benefits of fresher, cleaner air. We’re glad the yearly filter change has become such an important part of maintaining a healthy environment for you and your loved ones. If you ever have questions or need support, please don’t hesitate to reach out to us at Info@cowaymega.com. We truly appreciate your trust in Coway and your commitment to clean air.

Apr 9, 2026
Reviewer name: Kammie
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Get the job done

The filters for the air filter model 400S do their job providing better air quality especially we have an open kitchen.

Review from Coway USA
Helpful?4IBXZIKSOGS3134675268
reply from Customer Service

Thank you for sharing your experience. We’re glad to hear the Airmega 400S filters are helping maintain better air quality in your open‑kitchen space.

Current price is $99.00
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31

How do you want your item?

How do you want your item?
Ships to
Arrives between Nov 19 - Nov 23
|
Sold and shipped by Coway USA, Inc.
4.608247422680412 out of 5 stars
4.6 stars out of 5, based on 97 seller reviews(4.6)
Extended holiday returns
Free Holiday returns until Jan 31
Other sellers
$114.99
+Free shipping
Shipping, arrives by Thu, Nov 19 to Columbus, 43215
Sold and shipped by Sylvane
Extended holiday returns
Free Holiday returns until Jan 31