---
product_id: 598452805
title: "COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B)"
brand: "coway"
price: "$1207.55"
currency: USD
in_stock: false
reviews_count: 5
url: https://www.desertcart.us/products/598452805-coway-air-purifiers-for-large-room-whole-home-up-to
store_origin: US
region: United States of America
---

# Dual True HEPA + Activated Carbon filters Covers up to 4,253 ft² Real-time PM1.0 AQI air quality monitor COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B)

**Brand:** coway
**Price:** $1207.55
**Availability:** ❌ Out of Stock

## Summary

> 🌬️ Breathe Big, Live Clean — The Ultimate Air Upgrade for Your Space

## Quick Answers

- **What is this?** COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) by coway
- **How much does it cost?** $1207.55 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/598452805-coway-air-purifiers-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

- • **Next-Level Filtration:** Dual XL washable pre-filters plus True HEPA capture 99.999% of particles down to 0.01 microns.
- • **Smart Auto & Eco Modes:** Automatically adjusts fan speed or powers down to save energy when air is clean.
- • **Real-Time Air Quality Insights:** Stay informed with PM1.0 AQI monitoring and filter replacement alerts for peak performance.
- • **Effortless Mobility & Longevity:** Smooth-rolling wheels and a 5-year warranty keep your air fresh and your investment secure.
- • **Massive Coverage for Large Spaces:** Purifies entire homes or offices up to 4,253 ft² with powerful binary motors.

## Overview

The Coway Airmega ProX is a premium air purifier designed for extra-large rooms up to 4,253 ft². Featuring dual True HEPA and activated carbon filters, it removes 99.999% of ultra-fine particles and VOCs. Its smart auto and eco modes optimize air quality and energy use, while real-time PM1.0 AQI monitoring and filter indicators keep maintenance hassle-free. Equipped with wheels and backed by a 5-year warranty, it’s the perfect blend of power, intelligence, and convenience for modern living.

## Description

Coway Airmega ProX is a high performance air purifier for extra larges space thanks to its binary motors and dual purification. With Coway's 3-stage HyperCaptive™ filtration system and custom Smart features such as auto/eco mode, air quality indicator, and filter replacement indicator, enjoy the clean air without the hassle.

Review: Yes its big, yes its expensive, but if works, and not just a little. We have an 65 year old house and two large dogs and 2 cats and 2 teenagers so... our house had an "odor" to say the least, also we have large open spaces. Our house is about 4,000 sqft with the great room/kitchen/livingroom being one large continuous space with very tall ceilings. Plus... did I mention our house is old, build in 1959 out of real wood, lathe and plaster, all the good stuff... but after almost 65 years... the good stuff smells... Ok to get to it... this giant air purifier works amazingly well, if you have the space, or you dont care about size, it works better than anything or any other unit we've tried. After 2 days our house has ZERO smell and the air is noticeably clean and dust free. When the dogs are playing rough, or our HVAC kicks on and puts particulate into the air, the display on the unit and indicator light changes if the air is dirty, on the first day, every time the HVAC came on I noticed it would go from 1 or 2 up to 20 or so... it automatically speeds up to clean the air, and now after several days, its only goes up to maybe 4 or 5, umits getting better and better. As mentioned all odor in our entire house (except the teenagers bedrooms, air nothing gonna fix that!) Is GONE. We had a friend who regularly is at our house over last night and she walked in and the first thing she said is "what did you do?, I've never been in your house and it not smell..." thus I decided this product was worthy of writing a review. I was skeptical to spend this much $ on a unit, though we've spent much more when you combine all the others we've tried. Sure they worked to a small degree, or if you were sitting close to them, but this is the first one that has delivered 100% whole-house odor free clean air. Its the sise of a water cooler without the water tank, so keep that in mide, but well worth it to have an odor-free house
Review: Initially purchased an Airmega ProX and Airmega 350 to supplement our older Alen Breathesmart flex. Surprisingly, the larger ProX is the quietest of the three. It emits a soothing sound on level 2 and on level 1 it’s hard to hear it running when more than a few feet away. As someone that struggles with chronic allergies and allergy related headaches, the air feels very clean and our cat has been sleeping a short distance from the ProX due to the soothing sound. The main downsides of the unit are the filter costs and the size, however, Coway has been selling filters discounted on their website. The difference in build quality and sound compared to the 350 was enough for us to return the 350 and swap it with a second ProX for our oversized bedroom. We run both now at 24/7 on level 2 no problem, not audible during work meetings or anything.

## Features

- Coway Airmega ProX boasts maximum strength with its binary motor, accommodating indoor spaces up to 2,126 square feet (CADR: Dust 580 / Pollen 450 / Smoke 567).
- Coway Airmega's HyperCaptive filtration system combined activated carbon and a True HEPA filter-captures and reduces up to 99.999% of particles down to 0.01 microns in the air, including pollen, pollutants and other allergens. It also reduces more than 99% of volatile organic compounds and reduces fumes such as NH3 and CH3CHO.
- Coway Airmega’s real-time air quality monitor keeps you informed of the quality of your air. In Auto Mode, the fan and purification levels adjust to the space as needed.
- Fan speeds available in 1, 2, 3 stages by manually setting up. While auto mode automatically optimizes the speed setting 1 through 3 based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and set as Eco mode to save energy.
- Filter replacement indicator checks both Pre-filter and HEPA filter respectively to let users be aware of when to wash or replace the filter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Coway |
| Model Number | AP-3522F |
| Colour | Mocha Beige |
| Product Dimensions | 61.72 x 48.01 x 92.96 cm; 23.13 kg |
| Power / Wattage | 65 watts |
| Auto Shutoff | Yes |
| Noise Level | 55 Decibels |
| Special Features | Air Quality Indicator, Auto Mode, Dual Purification, Eco Mode, Filter Replacement Indicator |
| Item Weight | 23.1 kg |

## Product Details

- **Colour:** Mocha Beige
- **Brand:** Coway
- **Power source:** Corded Electric
- **Item weight:** 51 Pounds
- **Control method:** Touch

## Images

![COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) - Image 1](https://m.media-amazon.com/images/I/31oRW8vDj-L.jpg)
![COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) - Image 2](https://m.media-amazon.com/images/I/51DamcwVO+L.jpg)
![COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) - Image 3](https://m.media-amazon.com/images/I/51KD1+RdbCL.jpg)
![COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) - Image 4](https://m.media-amazon.com/images/I/51VJGjOZcDL.jpg)
![COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) - Image 5](https://m.media-amazon.com/images/I/51aLX6N7QCL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***2 on 11 February 2024*

Yes its big, yes its expensive, but if works, and not just a little. We have an 65 year old house and two large dogs and 2 cats and 2 teenagers so... our house had an "odor" to say the least, also we have large open spaces. Our house is about 4,000 sqft with the great room/kitchen/livingroom being one large continuous space with very tall ceilings. Plus... did I mention our house is old, build in 1959 out of real wood, lathe and plaster, all the good stuff... but after almost 65 years... the good stuff smells... Ok to get to it... this giant air purifier works amazingly well, if you have the space, or you dont care about size, it works better than anything or any other unit we've tried. After 2 days our house has ZERO smell and the air is noticeably clean and dust free. When the dogs are playing rough, or our HVAC kicks on and puts particulate into the air, the display on the unit and indicator light changes if the air is dirty, on the first day, every time the HVAC came on I noticed it would go from 1 or 2 up to 20 or so... it automatically speeds up to clean the air, and now after several days, its only goes up to maybe 4 or 5, umits getting better and better. As mentioned all odor in our entire house (except the teenagers bedrooms, air nothing gonna fix that!) Is GONE. We had a friend who regularly is at our house over last night and she walked in and the first thing she said is "what did you do?, I've never been in your house and it not smell..." thus I decided this product was worthy of writing a review. I was skeptical to spend this much $ on a unit, though we've spent much more when you combine all the others we've tried. Sure they worked to a small degree, or if you were sitting close to them, but this is the first one that has delivered 100% whole-house odor free clean air. Its the sise of a water cooler without the water tank, so keep that in mide, but well worth it to have an odor-free house

### ⭐⭐⭐⭐⭐ Review
*by A***R on 11 October 2025*

Initially purchased an Airmega ProX and Airmega 350 to supplement our older Alen Breathesmart flex. Surprisingly, the larger ProX is the quietest of the three. It emits a soothing sound on level 2 and on level 1 it’s hard to hear it running when more than a few feet away. As someone that struggles with chronic allergies and allergy related headaches, the air feels very clean and our cat has been sleeping a short distance from the ProX due to the soothing sound. The main downsides of the unit are the filter costs and the size, however, Coway has been selling filters discounted on their website. The difference in build quality and sound compared to the 350 was enough for us to return the 350 and swap it with a second ProX for our oversized bedroom. We run both now at 24/7 on level 2 no problem, not audible during work meetings or anything.

### ⭐⭐⭐⭐⭐ Review
*by N***A on 19 September 2025*

This might be premature, but I read Condumers Report and this purifier was highest rated as well large cleaning volume. It is big so you need to think about location, but given it purifying volume anywhere is prob ok. The only real downer was expensive filters once a year and noise at low speed. I found the purifier was very very quiet in fact a low speed I needed to put my hand over vent to be sure it was running. So long term per CR it’s great and from my experience very very quiet. It’s a serious investment, but serious purifiers seem to run $500 to over $1000 with more noise and poorer performance. Given the potential for years of service (I hope at least 10) it seems like a good investment. I have not tried all the modes arrrggghhh so many so my views might change but out of the box it’s great.

## Frequently Bought Together

- COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and True HEPA Filters for Dual Purification, PM1.0 AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B)
- Coway Airmega ProX Air Purifier Replacement Filter Set, Max 2 Green True HEPA and Active Carbon Filter
- Coway Airmega 400/400S Air Purifier Replacement Filter Set, Max 2 Green True HEPA and Active Carbon Filter, AP-2015-FP

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*