LEVOITGenuine Core 400S-P Air Purifier Pet Allergy Replacement Filter, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon for Removal of Pollen, Allergen, Core 400S-RF-PA, 1 Pack, Yellow

I was always a little skeptical of these things, but I've got to admit thar they really DO work, and they work wonders. We have far less dust and overall better smelling space -which says a lot, because one of them is relatively close to a kitty litter box!

Functions as it should. Helps my room stay free of allergens, especially with the pollution in my area, it's nice to come home to a clean air room. I never hear this thing unless I hit my vape and blow into the open air then it's fans spin up other than that it's always very quiet.Installing the new filter is super easy. Turn off and unplug purifier, flip, remove bottom plate by slight twist and lift, pull out old filter, install new, replace bottom plate with a twist, flip back over, plug back in and, turn on. Bam filter replaced in less than a minute. We'll worth the price for the longevity.

I love my air filter. Trust me, you know it’s working when you change the filter. Very quiet.

Great product, always works well, subscribe and save makes sure I change them on a regular basis!

This 400 S Levoid air purifier refill really cleans my ear. Well, my air quality and my filter quality help me to breathe better. My ear is clean despite my gross neighbors who smoke and do drugs, and all that smell comes in through the walls in the ceilings the north level is minimal a very good quality air purifier.

These filters work great but are a bit costly to keep buying. I had let my original filter run past the replacement notification for about a month. A week past the notification I could tell there was a difference in performance, it took me 3 more weeks to commit and pony up the money for another filter. When I pulled the old one out it was VERY apparent it was done.Installing the new filter was dummy easy and immediately could SMELL the difference. I will try the pet-specific filter next time, it's just tough to spend that kind of money every few months.

Perfect fit and does the job

Quiet.Works better than expected. I have it near the kitchen and it quickly removes cooking smells.The App is very helpful and easy to set-up.I turn the machine off whenever I burn incense or scented candles.If you get a red 999 code, simply vacuum the outside intake vent on the side as it is most likely blocked with dust.Very pleased!