---
product_id: 27293554
title: "COWAY Air Purifier for Large Room Whole Home Up to 3,120ft², HEPA Filter for Smoke, Allergies, Pet Dander, Odor, App-Enabled, AQI, Smart Mode, Timer, 5yr Warranty, Airmega 400S White"
brand: "coway"
price: "$1996.05"
currency: USD
in_stock: true
category: "Coway"
url: https://www.desertcart.us/products/27293554-coway-air-purifier-for-large-room-whole-home-up-to
store_origin: US
region: United States of America
---

# 3120 sq.ft. coverage App & voice control 99.97% HEPA filtration COWAY Air Purifier for Large Room Whole Home Up to 3,120ft², HEPA Filter for Smoke, Allergies, Pet Dander, Odor, App-Enabled, AQI, Smart Mode, Timer, 5yr Warranty, Airmega 400S White

**Brand:** coway
**Price:** $1996.05
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your air game—because your home deserves smart, spotless air.

## Quick Answers

- **What is this?** COWAY Air Purifier for Large Room Whole Home Up to 3,120ft², HEPA Filter for Smoke, Allergies, Pet Dander, Odor, App-Enabled, AQI, Smart Mode, Timer, 5yr Warranty, Airmega 400S White by coway
- **How much does it cost?** $1996.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/27293554-coway-air-purifier-for-large-room-whole-home-up-to)

## Best For

- coway enthusiasts

## Why This Product

- Trusted coway brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Adaptive Efficiency:** Smart Mode automatically adjusts fan speed based on real-time air quality, balancing power and energy savings.
- • **Triple-Layer Defense:** Pre-filter, active carbon, and True HEPA capture 99.97% of allergens, dust, and VOCs for pristine air quality.
- • **Breathe Freely, Live Fully:** Cleans up to 3,120 sq.ft. in just 60 minutes—perfect for your open-concept lifestyle.
- • **Eco Mode for Conscious Living:** Fan powers down after 30 minutes of clean air, conserving energy without compromising your health.
- • **Smart Control at Your Fingertips:** Manage air quality anytime, anywhere with the intuitive Airmega app and seamless Alexa/Google Home integration.

## Overview

The Coway Airmega 400S is a premium smart air purifier designed for large spaces up to 3,120 sq.ft. Equipped with a HyperCaptive Filtration System combining pre-filter, active carbon, and True HEPA filters, it removes 99.97% of airborne particles as small as 0.3 microns, including allergens and VOCs. Its Wi-Fi-enabled smart features allow full control via the Airmega app or voice assistants like Alexa and Google Home. With energy-saving Smart and Eco modes, it intelligently adapts to your environment, delivering quiet, efficient air purification backed by a 5-year warranty.

## Description

The most advanced air purifier developed by Coway. Airmega is a connected air purifier that intelligently, effectively and quietly cleans the air in your home. Its dual-filtration system removes 99. 97 percent of particulate matter from the air, while the accompanying Airmega mobile app (iOS Android) allows you to monitor and manage air quality from almost anywhere.

## Features

- [Coverage] Designed to clean spaces up to 3,120 sq. ft. in 60 minutes
- [HyperCaptive Filtration System] Combination of a pre-filter, active carbon filter, and HEPA Filter reduces 99.97% of 0.3 micron particles, including pollen and other allergens. It also reduces volatile organic compounds and odor
- [APP and Voice Control] IoCare mobile app includes indoor and outdoor air quality monitoring, filter notification, scheduling, and speed and smart mode control. Coway Airmega also works with desertcart Alexa and Dash Replenishment
- [Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality. That means your unit is energy efficient without compromising effectiveness
- [Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01C9RIAFS |
| Best Sellers Rank | #38,113 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #74 in HEPA Filter Air Purifiers |
| Brand Name | Coway |
| Color | White |
| Contaminant Filtration Capability | Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs) |
| Control Method | Voice |
| Controller Type | Amazon Alexa, Vera |
| Customer Reviews | 4.4 4.4 out of 5 stars (975) |
| Filter Class | HEPA |
| Filter Type | HEPA Filter, Active Carbon Filter, Pre-Filter |
| Floor Area | 3120 Square Feet |
| Global Trade Identification Number | 00826439150006 |
| Included Components | Air Purifier, Filter Set, User Manual |
| Item Dimensions D x W x H | 14.8"D x 14.8"W x 22.8"H |
| Item Type Name | HEPA Filter Air Purifier |
| Item Weight | 24.7 Pounds |
| Manufacturer | Coway |
| Model Number | Airmega 400S |
| Noise Level | 22 Decibels |
| Part Number | AP-2015E |
| Particle Retention Size | 0.3 Micron |
| Power Source | Corded Electric |
| Smart Home Compatibility | Smart Home Compatible |
| Special Features | Air Quality Monitor, Eco Mode, Filter Life Indicator, Smart Mode, Wi-Fi Enabled |
| Specification Met | CARB Certified, ETL Certified |
| UPC | 826439150006 |
| Unit Count | 1.0 Count |
| Warranty Description | 5 year manufacturer's limited warranty |
| Wattage | 66 watts |

## Product Details

- **Brand:** Coway
- **Color:** White
- **Item Weight:** 24.7 Pounds
- **Power Source:** Corded Electric
- **Product Dimensions:** 14.8"D x 14.8"W x 22.8"H

## Images

![COWAY Air Purifier for Large Room Whole Home Up to 3,120ft², HEPA Filter for Smoke, Allergies, Pet Dander, Odor, App-Enabled, AQI, Smart Mode, Timer, 5yr Warranty, Airmega 400S White - Image 1](https://m.media-amazon.com/images/I/81SsY+-9zgL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does the area (1256 sqft) need to be one open area or can be split into multiple rooms with doors open ?**
A: Well first off no real air purifier expert would tell you to use the 1256 sq.ft. You want a minimum of 5 air changes per hour (ACH) and 1256 only provides about 2. If you are truly looking for the benefits of air purification then you should be looking at 500-700 sq.ft and no more. With that said, you lose efficiency if it has to go to multiple rooms and thus less ACH. Unless you have an industrial Air purifier built into your HVAC system at your house you should think about limiting one air purifier per room (with the appropriate amount of power to handle it).

**Q: I'm getting a shipping error for California. Why is there a restriction to ship to California? It doesn't go over the dimension or weight max.**
A: California bans electrostatic air filters because they produce unsafe amounts of ozone. Ozone damages your lungs. This also might be an Amazon problem, where they take reviews for similar products and stick them all together. I'm not sure the  Airmega 400 has an electrostatic system in it. I don't see the no shipping alert on its Amazon listing (I live in California) but I see it on Healthmate HM-400 listing.  The Wirecutter did a whole article and missed the electrostatic filter, so thanks CA. Electrostatic filters are very effective at removing particles but they produce ozone. If you're tired of smelling chicken poop, moving from a chicken ranch to an oil refinery would work, but.....

**Q: Does this work well to remove pet odors? It is so hard to hard to find any straight forward answers about odor removal on any of these higher end unit**
A: I love it.  I have a very sensitive nose and breathing. Works great for pet odors!  I need one for the other side of the house.  Worth the investment.  I've tried some of the other $200-$300 purifiers

**Q: Will this work for oil painters - i need it to help with the removal of vocs such as turpentine and mineral spirits?**
A: NOT good at all. I wish I could say otherwise since I own this product. I have 3 different instruments that measure VOCs. DO NOT depend on this product for VOC removal. I bought the Conway and the VOC testing instruments because I am a victim of VOC poisoning in my living space.  After zeroing the testing instruments and getting baseline VOC measurements, the Conway did nothing to reduce them - even at the highest fan setting after 24 hours. I still love the Conway though as it does a SPECTACULAR job at reducing a full range of microparticulate matter.

## Frequently Bought Together

- Coway Airmega 400S App-Enabled Smart Air Purifier (Covers 1,560 sq. ft.), True HEPA Air Purifier with Smart Technology, Compatible with Amazon Alexa and Google Home, White (111012)
- Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White
- COWAY Air Purifiers for Bedroom Home up to 810 ft², True HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI Monitor, Auto&Sleep Mode, Timer, Filter Indicator, Night Light, 3yr Warranty, 100 White

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-09*