Filter vacuum cleaner

Spare permanent filter for dust container of Bosch, Siemens and Profilo. I lost mine when emptying the container, so I designed it instead of buying it new.You can easily scale it up or down for the perfect fit, or use a drip of hot glue (that it can easily be disassembled again.I would be happy if this part could also be useful for someone else and would be happy about a make.