Robert Cowan | Fixing a Design Flaw - HEPA Air Filter @RobertCowanDIY | Uploaded 5 months ago | Updated 6 minutes ago
I like my Gweike HEPA air filter, but it has a major design flaw. For the pre-filter, only a small portion of it is actually getting used due to how the inlet is designed. Armed with some filament and a 3d printer, I'm going to fix this. Most laser air filters seem to have this same design, so this process should work on most of the filters on the market.

Bosch Cordless Jigsaw - amzn.to/3WnTmrj
1/4" Weather Stripping - amzn.to/3QAvm0f

Gweike Air Duct Files - printables.com/model/869525-gweike-air-filter-duct-redesign

youtu.be/ZoqGMrT9QYo

youtu.be/fohTiA8raVQ

My Favorite Tools - amazon.com/hz/wishlist/ls/26XWKXQK322W8?&tag=robertcowandi-20

00:00 Intro
00:25 The Design Flaw
01:13 Proposed Design
01:50 Modeling the Part
04:07 Laser Cutting Template
05:19 Printing the Duct
07:18 Test Fit
07:39 Modifying the Lid
08:44 Attaching the Duct
09:48 Conclusion