I have used PLA
You must print 2x Filter Holder, 2x The Safety Pin and the another STL Files only 1x.
Print in original Orientation and you need no support!
Material you need and I used:
Ultitop Cover*:
Filter*:
Fan*:
Front Door*:
You want more Designs and Models check my other Accounts:
Pinshape:
https://pinshape.com/users/94416-makethings3d#designs-tab-open
Thingiverse:
https://www.thingiverse.com/Marc_M/designs