There is white sand in the ashtray of the hotel. How to get the smoke out?

What you want to ask is how to get the white sand out of the hotel ashtray.

1, prepare a piece of paper, knead it into a ball, and then press it in an ashtray so that the paper ball is stained with white sand.

2. Take out a napkin, fold it in half, and then press it in an ashtray, and the napkin will suck out white sand.