Stackable Hepa

This is a TinkerCad Remix of the BentoBox V2 Hepa box and Lid. Which makes the Hepa box movable (Hepa under carbon filter). While I was at it, I created an additional Lid that should allow more air flow. I purchased a BentoBox from Voxel (Voxel PLA & PETG are great to use). If this was an option when I purchased from Voxel (voxelpla.com) I would have chosen it. After assembling I noticed that the air draw goes through the Hepa Filter first and then through the Carbon. I have several manufactured air purification systems, and this is backwards to how they work. They pull through the carbon and then through the Hepa! I did some research and found only 1 manufacture that has this pulling Hepa then through carbon. Asking an AI for clarification: "carbon should come before HEPA in an air purifier filter system. A carbon pre-filter catches large particles before they reach the HEPA filter, which can extend the life of the HEPA filter. The HEPA filter then captures the microscopic particl