>>105760786
at the same time, i'm also looking at these little handheld cordless vacuums as a reference.
this baseus and the popular mijia tube vacuum seems to be accurate in its suction pressure claims at 15k-ish kpa
https://www.aliexpress.com/item/1005008248066500.html
https://www.aliexpress.com/item/1005006994933124.html

i'm on the lookout for a gun-shaped mini vacuum to keep in my car or next to my desk that does use those 3S1P/4S1P battery packs so i can replace them when the time comes. it's just hard to figure out which ones are good because the price and pressure claims are all over the place, and the damn videos don't really help