To stop those fans from blowing at your parts, you'll need some kind of "snorkel". => You'll have to diassemble your PSUs to mount those. <= I used "Fan suppressor by _Godoy_" (https://www.thingiverse.com/thing:2302554), but the original "60mm Fan silencer by Maxdarkdog" (https://www.thingiverse.com/thing:2284893) might be better at reducing noise. (TBH they both won't reduce nosie significantly, but they do redirect the airflow. ;-) )