Smaller plug-in AC Purifiers -- Shunyata, iFi, Puron...something else? What do you like?

I have found the Telos Mini Q works excellent.

Some years ago went through many large and small AC conditioners through Cable Company lending library. The best, and not by a small margin, for the smaller or single component conditioners was the Audience Adept  1 or 2.

@verafiaudio afiaudio
Thanks for the review.

@rsf507 

I cannot tell how to buy Telos Mini Q or how much it costs.

@sns 
I already love my Audience Adept r2r plug. I just notice that the Shunyata makes it even quieter. I'm trying to make a small additive improvement, not spend that much more.

@erik_squires 
I guess I could add a second power strip...

@hilde45 I bought mine thru Sounds Of Silence it was around $400 (they retail at 500)

@rsf507 Not there anymore.

$400 is a lot for a plug-in, in my opinion, especially when I'm seeing people say (about these and others) that multiple plugs are better. That adds up quickly. To each his own, of course.