Portable car vacuums, which are frequently ordered online, had a very important problem. Since there was no valve or cover system to keep the dust inside, it would vomit out the dust in the closed state. You can use these two models I designed to solve this problem.

I suggest printing the lid with TPU filament and the body with a transparent filament. For the lid, which weighs around 2 grams, just 1 meter of TPU filament should be enough.