Name: Coway Airmega 400s HEPA Air Purifier with Mobile Control Capability, Graphite
Brand: Coway
SKU: 5IQZ3O1D9RZ5
Price: 1049.99 CAD
Availability: OutOfStock
Rating: 4.3 (73 reviews)

Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Shop

The Home Event PIP banner dWeb Wk 14-15 2026

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Coway Airmega 400s HEPA Air Purifier with Mobile Control Capability, Graphite

<ul><li><strong>Pollutant Removal</strong>: Removes 99.97 percent of pollutants by changing room air up to twice per hour in rooms up to 1,560 square feet.</li><li><strong>Mobile Control Capability</strong>: Control from the Coway Airmega mobile app or through Amazon Alexa.</li><li><strong>Automatic Air Adjustment</strong>: Automatically adjusts fan and air-filtration speed for auto, sleep, and eco settings.</li><li><strong>Real-Time Air Monitoring</strong>: Monitors and reports air quality in real-time.</li><li><strong>Filter Maintenance Alerts</strong>: Provides filter alerts to indicate when filters need replacement.</li></ul>

<ul><li>Smart console air purifier ensures that the air in your home is free of contaminants</li><li>Removes 99.97 percent of pollutants by changing room air up to twice per hour</li><li>Automatically adjusts fan and air-filtration speed for auto, sleep, and eco settings</li><li>Smart air purifier technology monitors and reports air quality in real-time</li><li>Can be easily controlled from the Coway Airmega mobile app or through your Amazon Alexa</li><li>Washable pre-filter and 2 Max2 HEPA filter sets come included</li><li>Filter alerts lets you know when the filters need to be replaced</li><li>Specifications:</li><li>Product type: Console air purifier</li><li>Filter: Yes</li><li>HEPA filter: Yes</li><li>Number of fan speeds: 4</li><li>Portable: Yes</li><li>Recommended room size: 1,560 square feet</li><li>Features: Eco mode, sleep mode, mobile app</li><li>Color: Graphite</li><li>Dimensions (L x W x H): 14.8 x 14.8 x 22.8 inches</li><li>Weight: 24.7 pounds</li><li>Manufacturer warranty: 5-year warranty</li></ul>

Filter Type

Brand

Number of Speeds

Recommended Use

Colour

Model

Take charge and keep the air you breathe clean with the Coway Airmega 400s HEPA Air Purifier. 

By changing room air up to twice per hour, this HEPA air purifier removes 99.97 percent of pollutants from your home. With smart air purifier technology, you can monitor air quality in real-time, while simultaneously controlling your Airmega purifier on the Coway Airmega app or through your Amazon Alexa. 

With automatically adjusting settings, the Conway Airmega Purifier really does it all - it's a shame it can't cook dinner though.

Universal Product Code (UPC check)

Walmart Protection Plan

Protect it today, enjoy it for years - plan covers:<br><br>• Mechanical and electrical failures<br>• Breakdowns or failures from normal use<br>• 24/7 virtual tech support and Fast online claims backed by our 3-Business-Day Service Guarantee<br>• Includes 100% parts, labour and shipping - no deductibles

Notice for Quebec Customers<br><br>Protect it today, enjoy it for years.<br>Get low-cost, great value protection that goes beyond the manufacturer’s warranty, keeping your product covered when you need it most.<br><br>Protection covers:<br>• Mechanical and electrical failures.<br>• Defects in workmanship and materials from normal use.<br>• Fast, easy online claims backed by our 3-Business-Day Service Guarantee.<br>• 100% coverage for parts, labour and shipping - no deductibles or additional cost (pay $0 for approved claims).<br><br>How the Plan works:<br>1. Add a Plan to your order.<br>2. Plan details will be emailed to you after completing your purchase.<br>3. Start a claim online anytime or by phone.<br>We’ve got you covered up to the amount you paid, whether it’s a replacement, a refund or repairs.<br><br>You can cancel within 90 days of purchase for a hassle-free refund, according to your plan terms.<br>Limitations and exclusions apply. For more details, view the terms and conditions.

Get peace of mind for pennies a day!

Protect your purchase

<!DOCTYPE html>
<html>
   <head>
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link
         rel="stylesheet"
         href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
         />
   </head>
   <body>
      <div class="flex flex-column justify-center w-100 ph3 normal lh-copy pt1">
            <div class="tc">
               <img src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg">
               <h3>4 equal payments</h3>
               <h4 class="gray">Buy what you love and split the cost. It's that easy. </h4>
            </div>
            <ul>
            <b>
               <li>Add item(s) to your cart.</li>
               <li>
                  Add items to checkout and choose 
                  <image height="14" width="auto" src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg"></image>
               </li>
               <li>Enter your debit or credit card information. </li>
               <li>Your first payment is taken when the order is processed, and the remaining 3 are automatically taken every two weeks.</li>
            </b>
            </ul>
            <p class="gray">Please note that a higher initial payment may be required for some purchases. Pay later in 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4" target="_blank">terms</a> available here. For Quebec residents, these Pay Later 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4_quebec" target="_blank">terms</a> are applicable. </p>
      </div>
   </body>
</html>

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link
      rel="stylesheet"
      href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
    />
    <style>
      body,
      html {
        font-family: 'Everyday Sans', Arial, sans-serif;
      }

      li {
        margin-bottom: 0.5rem;
      }
    </style>
    <title>Walmart Installment Plan</title>
  </head>

  <body>
    <div class="col-container w-100 normal lh-copy pt1">
      <div class="col tc">
        <img
          width="35%"
          src="https://i5.walmartimages.com/dfw/8822aef6-971e/k2-_ed78b905-6394-4f88-a805-ab299123f2cc.v1.png"
          alt="Walmart Installment Plan"
        />

        <h3>Shop today, take time to pay</h3>
        <p>
          Split your purchase into 6 equal installments*  /
          <a
            href="https://i5.walmartimages.ca/dfw/8822aef6-d3f1/k2-_417f32f7-5074-45a6-b23d-5d5b3039e5b8.v1.pdf"
            target="_blank"
            rel="noopener noreferrer"
          >
            Terms and Conditions apply
          </a>
        </p>

        <h4>Here's how it works</h4>
        <ul class="tl">
          <li>Spend $199.99 or more on walmart.ca**</li>
          <li>Select Installment Plan at checkout</li>
          <li>
            Pay with your Walmart Rewards Mastercard. If you don't have one,
            click "Apply Now".
          </li>
        </ul>

        <h4>Details</h4>
        <p>
          Your qualifying purchase will be split into 6 equal monthly
          installments charged to your Walmart Rewards Mastercard. If your items
          ship on separate dates, each shipment will be converted to a separate
          Installment Plan.
        </p>

        <h4>Don't have a Walmart Rewards Mastercard?</h4>
        <p>
          Apply now and upon approval use your new account to enjoy the
          convenience of an Installment Plan on eligible purchases*. Purchased
          items must appear on a single receipt totaling $199.99 or more (before
          taxes, discounts, Walmart Reward Dollar™ redemptions, and
          shipping/delivery fees)∆
        </p>

        <p>
          *See
          <a
            href="https://www.walmart.ca/cp/shop/installment-plan/6000204340202?icid=Glass_PIP_FinancingOptions_WRMC_LearnHow_TermsConditions2_WM"
            target="_blank"
            rel="noopener noreferrer"
          >
            Terms and Conditions
          </a>
          for full details
        </p>

        <p>
          ** Eligible Installment Plan purchases are excluded from earning
          Walmart Reward Dollars™. Walmart Gift Cards and Walmart Reward
          Dollars™ cannot currently be used on Installment Plan transactions.
         
        </p>

        <p>
          ∆ All new credit card applications are subject to approval by
          Fairstone Bank of Canada.
        </p>

        <div class="pt3">
          <a
            href="https://www.walmart.ca/en/cp/installment-plan/6000204340202?icid=Glass_PIP_FinancingOptions_WRMC_LearnHow_ApplyNow_WM"
            target="_blank"
            rel="noopener noreferrer"
          >
            <button
              class="pv2 ph3 sans-serif bg-blue white bn no-underline br-pill f6 pointer b"
              type="button"
            >
              Apply now
            </button>
          </a>
        </div>
      </div>
    </div>
  </body>
</html>

A solid purchase.  This air purifier does the job exceptionally well.  I highly recommend  anyone to purchase one for themselves.  
This air purifier does a good job at getting rid of all types of bad smells.  Its air cleaning abilities is very noticeable in a short amount of time.  I like the fact that the filters are easy to access, clean and change out.

High Quality.  Exceptional performance.

walmart.com

This unit services our open concept living room and kitchen. The dimensions are about 20x40 feet with 13 foot ceilings. The smart setting raises the fan speed when we are cooking despite have an exhaust hood running above the stove. It does not take long to settle back down to its lower speeds. 

It has a large footprint, and its suction points are on opposite sides so you'll need clearance around the unit as well. 

The app is not as bad as people make it out to be. Maybe it used to be, but my setup and use have been near flawless. I do get unstable connection notification on occasion, but we have a very dense network of IoT devices. I do wish the reports were searchable via hovering over data points, so I could pinpoint times high readings occurred.

Excellent large room purifier

Coway USA

We live in the Sierra Nevada Mountains of California and go through months/weeks at a time where the smoke from forest fires can result in air quality in the 700-800's. What a game changer the Airmega is!! I wish I had ordered the Airmega 400S sooner! We love that it covers the entire house and is extremely quiet. Between the cats, dogs, forest fires and pollen, we were in need of cleaner air. If you are still trying to decide if an Airmega is worth getting, then wait no more! Order one today and you will not be disappointed.

Can't believe we waited so long!

This is working very well in a large garage space. The air quality was noticeably improved within a few days and less dust has been accumulating. The WiFi connectivity is cool but not that important to me. This works just as well as the version without WiFi connectivity.

Noticeable improvement in garage air quality

When the sunshine's through the window are used to be able to see dust floating around but now I can't it's amazing actually to see results in action.

Not snake oil LOL

Discounted price was very appealing.  Entire process from purchase to setup was exceptional. My 400S works seamlessly and is EXTREMELY quiet. Have enjoyed it for a month now and have noticed improvement in my home.  I'm happy with this purchase.

Awesome Purifier

Considering the 400S is monitoring for particulates, it would be nice to know what particulates' are found causing the system to increase air filtering. Have I missed this capability?

Understanding the 400S

[This review was collected as part of a promotion.] Does a good job.  App is ok, not totally needed.  Connecting to wifi a bit tricky.  Expensive unit, but well worth it.

Excellent choice at a sale price

The unit which is my second Coway is fine, beautiful actually. It's the app that needs work, can't connect with Starlink which I only found out after I bought this. Fix that and 5 stars all day long.

Nice unit, app needs work to work.

The air purification is excellent but the wifi and the app for the unit is possibly the worst that I have experienced. It constantly disconnects and I have to login every time I open the app. Not a delight. Just buy the non wifi version in my opinion

Just get the non wifi version

Coway Airmega 400s HEPA Air Purifier with Mobile Control Capability, Graphite

Financing options

Your data, your choice