Pre-Filter Cover for Bosch Pro GAS 12V Vac

thingiverse

This is a custom-designed cover for the paper-filter of the Bosch Professional 12V (10.8V) battery-powered vacuum cleaner. The cover safeguards the original filter from damage caused by small rocks and other debris. There's some extra space between the top of the paper filter and the top mesh of this cover, allowing you to add some filter fibers to create a prefilter. This way, the fine lamellas on the original Bosch filter won't get clogged with dirt and dust so quickly. I took inspiration from an online hint to build a prefilter by modifying a Dirt Devil filter, but I've created this part, which fits perfectly onto the Bosch filter - unlike the Dirt Devil-based solution. I still have some ideas for a version 2.0, but this version already works great. If you also have any suggestions, feel free to add a comment. I may consider incorporating them into a future update.