Uner normal conditions how often does the filter need to be replaced?

I have had the 250 for a few months and a slightly different model, 2 Airmega 100 for about a year. These allow you to change the charcoal filter. I vacuum the screen and filters monthly. With these cleanings and open windows with maybe 2 weeks of A/C in summer I would say the filters last a year. No wild fire smoke, a little second hand smoke from another apartment maybe once a night for 15 minutes in the winter in 1 room. To run at an acceptable sound level 24/7 over many days in heavy smoke conditions or summer I recommend getting MORE capacity than you need if you do anticipate wild fire or other smoke. I'm in a 700 sq ft apt divided into 1 large and one smaller area. I have the 250 and a100 for the larger section, and a 250 for the smaller section in anticipation of wildfire smoke years like 2020 when we had this for a few weeks. In summer I run at least one at level 2 all the time. I wouldn't be able to stand hearing them on setting 3 for more than a quick clear out, but on setting 2 they are okay should keep the air clean enough. I bought them slowly over a year's time. They do seem to also act as dehumidifiers - which may or may not be helpful depending on conditions where you live and time of year.

Are the Airmega 250 filters the same as the Airmega 400 filters, i.e., interchangeable?

No, they are not interchangeable! The 250 & 400 filters are different sizes AND the 400 filters are sold in sets of two, because the 400/400S requires two filters (one on each side), whereas the 250/250S requires only one filter.

No, it goes in regular trash in my city.

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Coway Airmega 250/250S Air Purifier Replacement Filter Set, Max 2 Green True HEPA and Active Carbon Filter, AP-1720-FP

Product ID: 436387255

Details

Brand
Coway
Colour
Black
Item weight
3.15 Pounds
Power source
Corded
Product dimensions
39D x 45W x

⏳12-month lifespan

🌿Green True HEPA tech

🛡️99.99% particle removal

S$210

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Description

🍃 Breathe elite: Elevate your air, elevate your life.

BROAD COVERAGE - Efficiently cleans air in spaces up to 930 sq. ft.—perfect for your modern home or office
ODOR ERADICATOR - Neutralizes 99%+ of odors from food, pets, and smoke for a fresher space
NANO PARTICLE DEFENSE - Eliminates 99.99% of ultra-fine particles down to 0.01 microns—smaller than viruses
DUAL ACTION PURIFICATION - Combines Green True HEPA & Activated Carbon for unmatched air clarity
LONG LASTING PERFORMANCE - Enjoy up to 12 months of premium air purification without compromise

The Coway Airmega 250/250S Replacement Max2 Filter is a cutting-edge all-in-one air purifier filter combining Green True HEPA and Activated Carbon technologies. It captures 99.99% of microscopic airborne particles as small as 0.01 microns and neutralizes over 99% of odors and volatile organic compounds. Designed for spaces up to 930 sq. ft., it offers a robust 12-month lifespan, ensuring sustained premium air quality for health-conscious professionals.

Specifications

ASIN	B092XCDTWC
Best Sellers Rank	764,161 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 763 in Air Purifiers
Brand Name	Coway
Colour	Black
Contaminant Filtration Capability	High
Control Method	Push Button
Controller Type	Button Control
Customer Reviews	4.6 4.6 out of 5 stars (243)
EU Spare Part Availability Duration	12 Months
Filter Class	HEPA and Activated Carbon
Filter Type	HEPA
Floor Area	930 Square Feet
Included Components	Active Carbon Filter, True HEPA filter
Item Dimensions D x W x H	39D x 45W x 47H millimetres
Item Type Name	True HEPA and Activated Carbon Filter Set
Item Weight	3.15 Pounds
Manufacturer	Coway
Model Number	AP-1720-FP
Number of Packs	1
Part Number	AP-1720-FP
Particle Retention Size	0.1 Micrometer
Power Source	Corded Electric
Special Features	Coway Activated Carbon filter reduces more than 99% of odor from food, cigarette, and pets as well as volatile organic compounds., Coway Airmega Max2 filter has an average of 12-month lifespan with 930 sq. ft. coverage., Coway Airmega Max2 filter is an all-in-one that combines Coway Green True HEPA filter with an Activated Carbon filter., Coway Green True HEPA removes 99.999%* of nano-sized partic…
UPC	826439000431
Unit Count	2.0 count

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S$210

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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TrustScore 4.5 | 7,300+ reviews

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