Leather recliner near the unit has become "tacky"
The recliner is in a small bedroom. The unit is on a shelf near the open door, facing the door. Air conditioning intake is in the ceiling in the hallway near the bedroom door. Also noticing "tacky" feel to the handles of some weight equipment in that room. It is the only unit in the home which is 2400 sq ft.
Air Purifiers - Ecoquest - Breeze AT Living Air Purifier
Answers & Comments
Unfortunately this site has cut off your description of what has happened to your leather recliner, but here's my best guess... If the handles of the weight equipment are made of rubber, then almost certainly what you are experiencing is oxidative deterioration caused by the ozone that your "purifier" emits.
It may give a fresh smell to the air, but ozone is an environmental pollutant, causes degradation of organic matter such as leather and rubber (which is how it eliminates nasty smells) and is toxic to animals (including people), often causing respiratory problems.
Writing as a qualified chemist and biologist, I would not want to be in the same room as an ozone generator, and preferably not even in the same house. My advice to you: turn the "purifier" off - permanently! It will be better for both you and your possessions.