--- product_id: 372449194 title: "COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi" brand: "coway" price: "¥203777" currency: JPY in_stock: true category: "Coway" url: https://www.desertcart.jp/products/372449194-coway-air-purifiers-for-home-large-room-up-to-1 store_origin: JP region: Japan --- # Cleans up to 1,860 sq.ft. Smart app & voice control 99.97% HEPA filtration COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi **Brand:** coway **Price:** ¥203777 **Availability:** ✅ In Stock ## Summary > 🌬️ Elevate your air game—because fresh air is the new luxury. ## Quick Answers - **What is this?** COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi by coway - **How much does it cost?** ¥203777 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/372449194-coway-air-purifiers-for-home-large-room-up-to-1) ## 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 - • **Rapid Mode Boost:** Instantly turbocharge purification when pollution spikes—because your health can’t wait. - • **Expansive Coverage:** Purifies large rooms up to 1,860 sq.ft. in just 60 minutes—breathe freely everywhere. - • **Triple-Layer Defense:** Washable pre-filter, activated carbon, and HEPA combine to eliminate 99.97% of ultra-fine particles and odors. - • **Seamless Connectivity:** Control your air quality anytime via IoCare app, Alexa, or Google Assistant—effortless clean air at your command. - • **Smart Air Quality Monitoring:** 24/7 AQI tracking with automatic purification adjustment saves energy and keeps you informed. ## Overview The Coway Airmega 250S is a smart, Wi-Fi-enabled air purifier designed for large spaces up to 1,860 sq.ft. It features a powerful HyperCaptive Filtration System combining washable pre-filter, activated carbon, and HEPA filters to remove 99.97% of particles as small as 0.3 microns, including allergens, smoke, and VOCs. With real-time air quality monitoring, app and voice control compatibility, and a rapid purification mode, it ensures optimal indoor air quality with energy efficiency. Backed by a 3-year warranty, it’s a trusted solution for healthier living environments. ## Description 1.Airmega Air Purifiers, tested by KCL(Korea Conformity Laboratories), demonstrate effective capture of 0.01㎛ ultra-fine particles and allergens according to Korea Air Cleaning Association standards (SPS-KACA 002-132:2022 Modified). Performance may vary in your environment. 2.Our HEPA filter complies with IEST-RP-CC007 standards at speed level 1 as tested by SGS (Société Générale de Surveillance). SGS's test report only reflects SGS's evaluation of the sample and does not reflect the evaluation of the batch of goods from which the sample was taken. 3.Tested for acetic acid reduction rate by KCL(Korea Conformity Laboratories) in a chamber under JEM 1467: 2015 conditions for 60 minutes. Results may vary in different environments. 4.Activated Carbon Filter was tested by KCL(Korea Conformity Laboratories) and shown to reduce various harmful gases and odors within 30 minutes, including key VOCs and pollutants. Results are based on lab conditions and may differ in actual use. 5.Allergen filter media was tested by Nichinichi Pharmaceutical to measure allergen concentration using ELISA over a 24-hour reaction period. The test reflects the filter media's performance under laboratory conditions and results may vary in actual product usage environments. 6.Tested reduction rate of ammonia and hydrogen sulfide for 30 minutes under EL608:2023 condition by KCL(Korea Conformity Laboratories). Results may vary in different environments. 7. Tested by Intertek, reduction rates of Naphthalene, Sulfur Dioxide, and Nitrogen Dioxide were tested following JEM-1467:2015 standards. Actual performance may vary depending on the living environment. 9.Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted with Methyl mercaptan, Isovaleraldehyde, Isovaleric acid in a 1.0±0.1 m3 chamber with a test time of 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of over 99.5% was achieved. Results may vary depending on the actual usage environment. 10.Tested by the Guangzhou Institute of Microbiology, exposed the filter media to protein solutions for 24 hours under ISO 4333-2022 standard. The results showed strong reduction performance: >99.79% for pollen, >99.60% for dog allergen, >99.90% for cat allergen, and >99.80% for dust mites matter allergen. Actual results may vary depending on room size, airflow, and pollutant levels. 11.Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted in a 1.0±0.1 m³ chamber for 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of >99.5% was achieved for Formaldehyde and Toluene in 60 minutes. Results may vary depending on the actual usage environment. 12.Tested by Intertek, the test was conducted in a 1.0 m³ chamber for 120 minutes resulting a 99.9% removal rate on sulfur dioxide, nitrogen dioxide, and naphthalene. Results may vary depending on the actual usage environment. ## Features - [Coverage] Optimized to clean spaces up to 930 sq. ft. in 30 minutes or up to 1,860 sq. ft. in 60 minutes - [HyperCaptive Filtration System] Dynamic combination of a washable pre-filter, activated carbon filter, and HEPA Filter effectively reduces 99.97% of 0.3 micron particles in the air, including pollen, pollutants, and other allergens. It also reduces 99% of 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 - [Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed. - [Rapid Mode] When air quality is in need of a boost, Rapid Mode is activated to circulate at maximum power until your air is clean. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08H4JLMYX | | Best Sellers Rank | #16,120 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #39 in HEPA Filter Air Purifiers | | Brand Name | Coway | | Color | Warm Gray | | Contaminant Filtration Capability | Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs) | | Control Method | App, Voice | | Controller Type | Amazon Alexa, Google Assistant, Touch | | Customer Reviews | 4.2 4.2 out of 5 stars (254) | | Filter Class | HEPA, Activated Carbon, Pre-Filter | | Filter Type | HEPA Filter, Carbon Filter, Washable Pre-Filter | | Floor Area | 1860 square_feet | | Included Components | Air Purifier, Filter Set, User Manual | | Item Dimensions D x W x H | 8.3"D x 18.5"W x 19.7"H | | Item Type Name | HEPA Filter Air Purifier | | Item Weight | 20.5 pounds | | Manufacturer | Coway | | Model Number | AP-1720G | | Noise Level | 22 db | | Number of Packs | 1 | | Part Number | Airmega 250S | | Particle Retention Size | 0.3 micron | | Power Source | Corded Electric | | Software Update Supported to Date | unknown | | Special Features | Air Quality Monitor, Filter Life Indicator, Smart Mode, Wi-Fi Enabled | | Specification Met | CARB Certified, ETL Certified | | UPC | 826439000394 | | Unit Count | 1 Count | | Warranty Description | 3 year manufacturer's limited warranty | | Wattage | 64 watts | ## Product Details - **Brand:** Coway - **Color:** Warm Gray - **Item Weight:** 20.5 pounds - **Power Source:** Corded Electric - **Product Dimensions:** 8.3"D x 18.5"W x 19.7"H ## Images ![COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi - Image 1](https://m.media-amazon.com/images/I/81Mh114abxL.jpg) ![COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi - Image 2](https://m.media-amazon.com/images/I/51frDgLf+iL.jpg) ![COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi - Image 3](https://m.media-amazon.com/images/I/41lFSZq0tCL.jpg) ![COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi - Image 4](https://m.media-amazon.com/images/I/514RkXbxyBL.jpg) ![COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi - Image 5](https://m.media-amazon.com/images/I/51IWRmexIyL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What is the CFM rating on this product?** A: Ideally you want 4 ACH (Air Changes per Hour) and this unit rated 930 SF twice per hour, it's only suitable for room size 465 SF, Coway being sketchy and put up big number to tricks people into buying their products, pretty shady. If you search Coway 1512HH/Airmega 200m and compare it with Coway Airmega 250 on Energystar website, they are almost the same in performance. The only different is the Airmega 250 is bigger, better built, look better (personal opinion) and does run quieter. **Q: Why does the description say “down to 0.01 microns” while the actual packaging says, “0.03 microns”?** A: It's actually easier to catch the .01 micron particulates than the .03 micron particulates...Brownian motion. Google that statement and you'll find some interesting charts that'll put your mind at ease re: covid & coronavirus. **Q: What is the cadr rating of this product?** A: The correct CADR data tested by Intertek is as follows. - Smoke: 248.5 - Dust: 261.2 - Pollen: 230.1 Thanks. **Q: Does it have a remote?** A: It does not have a remote. ## Frequently Bought Together - COWAY Air Purifiers for Home Large Room Up to 930 ft², Washable Pre-Filter and True HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart & Rapid Mode, 3yr Warranty, 250S - 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/372449194-coway-air-purifiers-for-home-large-room-up-to-1](https://www.desertcart.jp/products/372449194-coway-air-purifiers-for-home-large-room-up-to-1) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-07*