Tested and confirmed to be working. I used this during the pollen season. I think the total usage period was about a year. Since I have children, there are some dirt and scratches on the outside. There are no particularly noticeable scratches or damage. Please check the condition of the filters in the photos. Some have tears (image 13). I tried to remove the writing with nail polish remover, and the letters peeled off a little (image 20). I have only done a simple cleaning. Please purchase only if you understand the above. Digital display slim design air purifier, with replaceable filter. Model number MCK70XJ-W, manufactured in 2020 - Color: White - Function: Air purifier - Design: Slim design - Operation panel: Digital display - Filter: Replaceable filter Thank you for viewing.