Audiotomb:
On the Klaudio machines I normally do a full 5 minutes wash, and 5 minutes dry, to make absolutely sure records are 100% dry before putting them in new sleeves. I use either MoFi or Diskeeper 2.0 sleeves, based on whether I’m single-cleaning or double-cleaning, and customer choice.
I do the same with the Audio Desk machines, a maximum 5 minute wash, and the drying time is fixed at 4 minutes.
I’m doing more double-cleaning than anything else right now, that’s been very popular with customers, and I use the Audio Desk for a 5 minute wash first, and then Klaudio for another 5 minute wash and 5 minute drying. This works out well, since the Audio Desk drying power isn’t nearly as good as Klaudio’s more powerful fan, especially when the "wipers" get worn on the Audio Desk..
Aside from the expense, I don’t have room for the Klaudio "Silencer" boxes (reminds me of when noisy commercial dot-matrix printers went in something similar) since all my equipment is on two 6-foot stainless steel tables, and my old desk. I’ve got 2 Klaudios, 2 Audio Desks, a Furutech DeMag, and VPI 16.5, and a Furutech DF-2 flattener.. So it’s a bit crowded, and all of this shares space in my music room, which I’m lucky to have since it’s a "no-go-zone" (with a baby gate) for my kids 6, 4, and 20 months!
Honestly, all of this equipment is way too noisy, couldn’t these machines have been designed to be quieter, knowing they’d most likely be used in an environment (room) where the owner also wants to listen to music?! The Klaudio and Audio Desk are bad enough, but the worst offender is my VPI 16.5 which I use for pre-cleaning chores when needed. Depending on what customers send me in any given week, I can literally be cleaning for hours at a time, often late into the night after the kids have to gone to bed, so I have worn earplugs at night (when I can’t turn up my system volume) and I now use some Klipsch X7i earphones that fit snugly and offer very good sound isolation.
You’re smart to protect your hearing from prolonged exposure to the audible noise the machines make (without even knowing what the potential effects of the ultrasonics might be) otherwise you may not be able to enjoy the better sound from those super clean records!