Yes, no smoking in the nail salon guys! The nail salon uses pure acetone to soak off acrylic nails and it stinks but they don't make you go outside or wear a mask. Because of that, I'm not really all that careful with it and use it inside just don't light a candle near it. I use a small glass jar with a lid (like baby food jar) and just use a small amount of acetone and just one coin so gunk from another coin doesn't get on it. Just enough acetone to cover the coin, so you waste less.