Tools: Scissors to cut plastic foil (only for large 356x800mm rectangular foil piece) Router: 1mm end mill for the slots 2mm end mill for everything else I used double sided tape made for fixing carpets to the floor to secure the foil and wood during cnc cutting. To clean the foil afterwards, i used isopropanol. Parts: ------------------------------------------------------------------- HEPA Filter: Replacement Filter,With HEPA Filter for Sleeping Outdoor Sports Housework for Nobico J003 J006 J008 J009 Air Purifier https://www.aliexpress.com/item/1005002877941084.html?spm=a2g0s.12269583.0.0.135c65262JlMRW Carbon Filter: Filter mat for kitchen fume hoods, manually cut to size (Respekta Kohlefilter MI 150 K) Fan version A (axial): BE QUIET! SILENT WINGS 3 120 HS (get the one with the highest static pressure you can get, 3 Pin version) Barrel Plug Socket: similar to FC681445 Switch: similar to MFS 131D Screws and nuts: 4Pcs. M4x50 4Pcs. M4 nut Fan version B (radial) - this moves much more air through the filter, but is louder. With the cheap fan controller, you can set the speed / noise level. ebmpapst RFL35-8/12N Barrel Plug Socket: similar to FC681445 Gelid FC-MC01-B fan controller - remove housing, but keep the little knob, mount with some double sided tape 36Pcs. self tapping 2.5x10 countersunk screws (spax) 2Pcs. self tapping screws 2.2x6.5 (for switch) 0.8 - 1.0mm thick PET Foil -> S3 Cover - PlasticFoil-Side v9.step Wooden Parts (Router needed): 6mm birch plywood panels (true thickness 6.3mm) -> S3 Cover - 6mm Teile Teil1 v17.step -> S3 Cover - 6mm Teile Teil2 v12.step 4mm birch plywood panels (true thickness 4.3mm) -> S3 Cover FoilBracket-L v9.step -> S3 Cover - FoilBracket-R v8.step wooden rod, diameter 6mm x 358mm 3D printed parts: -> S3 Cover HEPAFilter Bracket v2 -> S3 Cover KohleFilterBracket v13 -> S3 Cover KohlefilterBracket-Cover v3 -> TubeGuide_Left v2 -> TubeGuide_Right v5 Assembly: ------------------------------------------------------------------------- I think this does not need much explanation. The only tricky part is to get the large foil (356x800mm) into the frame, you will need four patient hands. First glue the three bars and the rod into one of the side frames. When dried, insert the foil into the slot of the frame and keep it there. This is where your second pair of hands come into play. Then add the second frame, also making sure the foil is inserted into the slot. Maybe try inserting the second frame first without glue. Then when it works out, add glue to the wooden connections. The plastic foil does not need to be glued. The foil side panels are clamped with the 4mm "S3 Cover FoilBracket-L/R".