4000i Series Air Purifier AC4236/10R1

That’s much too small for 60sqm. I think 4000 Series with 500-600 CADR is fine. This one you can run on speed 1 and it cleans your Appartement. The small ones are ok when you are not there because of the noise.

I use the 4000 series for 30-50sqm rooms.

Yes, I mean Philips. I can't give u informations for the shown device. Be aware that it can get very loud when the device is too small, especially when it´s in your bedroom!

I got 3 4000i units, they are often less then 300 euro/ dollar on amazon. Expensive but they work very well and the filters last 1 to 3 years.

UV lights don’t do anything in an air purifier. Smart features are not useful. Both of these units are budget models, both will clean air but have short filter lifespans. They are roughly equivalent. I’d personally get the Philips because I am opposed to smart features.

The website is lying. I'd throw that filter out after 9-12 months TOPS. Maybe sooner. Amazon lists the replacement filters for the 4000i as "up to 12 months". They have no pre-filter, so I'd personally swap them out at 6 months, but with some careful dusting/side-vacuuming you might be able to get 9-12.

The filters on the 3000i and 4000i are the same FY4440/30. I have the 4000i among other Philips and I recommend it, although keep in mind its measurements since it is a fairly large device. At what price have you seen it?

I have 3 philips 4000i 1 philips 4200 and a coway airmega 50.

We have 2 Philips 3000 series. Filters last about 3 years ( really). Ideal for big rooms and allergies like mine. Unfortunately they stopped producing these. The next gen are smaller but also with 1 year filters.

LEVOIT Core Mini Air Purifier for smaller rooms Large room either Philips Smart Air Purifier with real time AQI display or Coway Airmega AIM