How can I clean the purple part on the inside canister?

I read the suggestions for the other Dyson and that is not the same as this one that does not open up that way with this as far as I can tell I can unscrew it the purple part from the underneath if I had the right well basically they're stripped and I need to just get them out and get all new Dyson screws does anyone know the right tool for Dyson screws and how to buy more or if I can just replace the entire purple canister in the middle I don't know but there's got to be a way to keep it clean throughout it doesn't open up The filter in the center doesn't even get dirty and it doesn't have much suction