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.

Coway Airmega 250 250s Air Purifier Replacement Filter Set Max

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Elevate your air game—because your lungs deserve the best!

ODOR WHAT ODOR - Activated Carbon filter eliminates 99% of odors from pets, food, smoke & VOCs—your space stays fresh.
SET IT AND FORGET IT - Enjoy up to 12 months of premium filtration without constant replacements.
SEAMLESS COMPATIBILITY - Designed specifically for Coway Airmega 250/250S models—perfect fit, perfect performance.
ECO FRIENDLY EFFICIENT - Coway Green True HEPA filter combines power with sustainability for guilt-free clean air.
BREATHE PURE LIVE BETTER - Advanced True HEPA captures 99.9% of viruses, bacteria, pollen & fungi for cleaner air.

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. With a durable 12-month lifespan and eco-conscious design, this filter set ensures your Airmega purifier delivers consistently fresh, clean air tailored for modern living spaces.

Specifications

ASIN	B092XCDTWC
Best Sellers Rank	#121,276 in Kitchen ( See Top 100 in Kitchen ) #745 in Air Purifier Filters
Brand	Coway
Brand Name	Coway
Color	Black
Colour	Black
Contaminant Filtration Capability	Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs)
Control Method	Push Button
Control method	Push Button
Controller Type	Button Control
Customer Reviews	4.6 out of 5 stars 237 Reviews
EU Spare Part Availability Duration	12 Months
Filter Class	HEPA and Activated Carbon
Filter Type	HEPA
Filter type	HEPA
Floor Area	930 Square Feet
Item Type Name	HEPA Replacement Filter Parts for Airmega 250/S
Item Weight	3.15 Pounds
Item weight	3.15 Pounds
Manufacturer	Coway
Model Number	AP-1720-FP
Part Number	AP-1720-FP
Particle Retention Size	0.1
Power Source	Corded Electric
Power source	Corded Electric
Smart Home Compatibility	Not Smart Home Compatible
UPC	826439000431
Unit Count	2 Count

Reviews

N**.

Worth the premium, extremely long service life.

Wouldn't say I look forward to buying these filters due to the cost, that being said these genuine units last a looooong time and I would not want to cheap out. These are as good as any high-end 3m filter in terms of construction and have a huge amount of surface area. The activated carbon still seems to work after running 24/7 for a year or more.

20.07.2025

J**L

QUE FILTRE MUY BIEN EL AMBIENTE

LLEGO MUY RAPIDO EL REPUESTO

8.06.2023

J**J

Good quality

Works well, great filter. Easy to clean.

12.01.2026

L**S

Great filter

It is pricey however it made my home smell clean. The quality is great. It fit right in with no problem.

12.12.2024

A**R

Easy to install

build quality to last for long time. easy to install

10.05.2025

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