The only way to dry records is by vacuum. Fan drying is the absolute worst followed by towel drying. There is always some garbage left in the water. Fan drying evaporates the water and leaves everything on the record.
Ultrasound may not be the best way to clean records. I have seen no absolute data on this so this is an assumption fueled by marketing. To much power will definitely hurt the record and not enough will do nothing. Using the same water over and over then fan drying is a great way to ruin your records. Fresh water should be used for every cleaning then dry by suction. If you want to do this right with ultrasound you have to change the water with each record and dry the record with any good vacuum machine. In other words it is a PITA. Then, it sits and collects dust. Second to the Clearaudio machine are machines like the Keith Monks or the Sota.