Want a bit more filtration in my P1S and I already have the Anycubic Airpure for my resin printer. It fits perfectly in the gap on the right side of the build plate. I made this holder to make sure the Airpure does not accidently move under the build plate during printing. Used double sided tape to stick this little box to the bottom of the printer. Airpure easily be removed for charging the battery or filter.