400/400S Replacement Filter for Coway AIRMEGA Max2 400 400S 400(G) 400S(G) Air Purifier, Max2 Green True HEPA and Active Carbon Filter Set, AP-2015-FP, 1 SetThe Forest Stewardship Council

Works great with my air filter (Conway). Honestly I don’t know if it’s better or worse than the original filters but it’s the first time I’ve changed them in the two-three years I’ve had the filter.

Great product, fits like a glove in the air cleaner and great price.

It's identically in every dimension to the original. Even the cardboard frame is the same. The side with the carbon pellets is a bit different. The oem has larger hexagonal parts with larger pellets. The new aftermarket has smaller compartment with smaller pellets. The original has 88 pleats on mine and the aftermarket has 89 pleats. The aftermarket has the foam around the frame like the original. Very nice firm seal. I will buy again especially if on sale.

I’ve been using these HEPA air filters for a few years now, and they’ve never let me down. They’re incredibly inexpensive compared to other brands, but they still get the job done perfectly.One of the best things about these filters is that there's no weird smell when you first start using them, unlike some other filters I've tried in the past. They always work as expected, keeping the air clean and fresh.For anyone looking for reliable, affordable air filters, these are a must-have. I’ll definitely keep buying them for years to come!

It does it's job, just for a shorter period than the official one. Used my own air quality monitor and they do the job. But they do need to replaced more frequently than the factory ones.

These fit perfectly. They provide high quality filtration. I vacuum them with the soft brush attachment.

I Love my Coway Air Purifier! And the fact that I can get the replacement filters through Amazon just makes it better! These things are great!! I have a Great Pyrenees and a cat, these filters take ALL odor out of the house in record time! I will never go back to smaller purifiers.

Started buying these with a Coway 400s for our basement. It does help with the smells in the basement. You can even notice the difference when the filter needs to be replaced vs after you install a new one.