Questionable Tweak

Yes… I don’t think it is a thing. After fifty years pursuing high end audio I have unquestionably experienced great benefit from interconnects, cables, power cords, vibration control, and some other stuff. Air quality… nope, at this point someone is pulling your leg.

I've found the opposite to be true.

The more cat fur/dander floating around here - the better the system sounds.

When I vacuum with our Purple Dyson (designed for furry pet households) the SQ drops for a day or two.

Don't believe everything you read.

DeKay

D-K 😁

Whatever the auditory case may be, it doesn't hurt to clean the air every now & then!

I moved my floorstander HEPA filter into my living/listening room (not for improved audio reasons) and heard popping noises coming from the speakers. I was playing CDs and as long as the device was in the listening area, I heard the popping sound. There was no weird sound when  the filter was behind the speakers.