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: 364646187

Details

Brand
Coway
Colour
Black
Control method
Push Button
Power source
Corded
Product dimensions
39D x 45W x

🌿Max2 Green True HEPA filter

🕒12-month long lifespan

🦠Removes 99.9% airborne particles

57.50 OMR

Duties & taxes included

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Description

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

ODOR NEUTRALIZER - Reduces 99% of odors from pets, food & smoke, keeping your environment fresh
DUAL ACTION PURIFICATION - Combines Green True HEPA & Activated Carbon for superior air quality
LONG LASTING PERFORMANCE - Up to 12 months of continuous, reliable air purification without compromise
ELITE PARTICLE FILTRATION - Eliminates 99.9% of viruses, bacteria, pollen & fungi for a healthier space
SEAMLESS FIT EASY REPLACEMENT - Designed specifically for Coway Airmega 250/250S with push-button control

The Coway Airmega 250/250S Replacement Filter Set features the Max2 Green True HEPA and Activated Carbon filters, engineered to remove 99.9% of airborne particles and 99% of odors. Designed for up to 12 months of continuous use, this premium filter set ensures cleaner, fresher air in spaces up to 930 sq ft, making it an essential upgrade for health-conscious professionals.

Specifications

ASIN	B092XCDTWC
Best Sellers Rank	#110,348 in Kitchen ( See Top 100 in Kitchen ) #711 in Air Purifier Filters
Brand Name	Coway
Color	Black
Contaminant Filtration Capability	Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs)
Control Method	Push Button
Controller Type	Button Control
Customer Reviews	4.6 4.6 out of 5 stars (249)
EU Spare Part Availability Duration	12 Months
Filter Class	HEPA and Activated Carbon
Filter Type	HEPA
Floor Area	930 Square Feet
Global Trade Identification Number	00826439000431
Item Dimensions D x W x H	39D x 45W x 47H millimeters
Item Type Name	HEPA Replacement Filter Parts for Airmega 250/S
Manufacturer	Coway
Model Name	Coway Genuine Airmega 250 Replacement Filter
Model Number	AP-1720-FP
Number of Packs	1
Part Number	AP-1720-FP
Particle Retention Size	0.1
Power Source	Corded Electric
Software Update Supported to Date	unknown
UPC	826439000431
Unit Count	2 Count

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