I call it a fatigued media air cleaner because it is dirty & sounds actually fatigued right now as it hums with the kittens both perched on top of it.
There is a massive flat surface on top of the purifier & I put a small blanket there where the kittens both care about to sleep.
I believe the quiet lull of the HVAC equipment helps calm them & put them to sleep. Or maybe it is the vibration that they like, but whatever it is I care about it because they have a arena where they both care about to sleep. Now it is daytime & they are still playing in the residing room although I believe they will soon go back to sleep for another night of fun. I need to get the HVAC supplier out here this week because the central is cold myself and others out as it is running non stop when I turn it on. I’m not sure what the complication is but when I woke up this day I swear there was frost on my home office window. I believe it is something in the smart control equipment that isn’t calibrated because when I put the control equipment on 75F it runs all night & the temperature in my flat is 72F in the day. The HVAC supplier will most likely have to replace it again, which makes the next smart control equipment my second one for the year. It must be a defect in the model or something but they will figure it out, it won’t be a massive deal.