This mini-vacuum is the best $20 you will ever spend.
You can order it on Amazon. https://www.amazon.com/dp/B074SJLGXW?psc=1&ref=ppx_yo2ov_dt_b_product_details
As you know, building a model is full of challenges and one of them is keeping parts and the work area clean.
This little tool has just the right amount suction to gently remove the styrene dust and shavings that get everywhere.
I cannot recommend it enough.
It is always at my side.