Cindy from Joliet writes
The Bellow Hand Duster and the Long Shot Puffer Duster are designed to treat cracks and crevices or voids where you place the tip of the duster, so it will only travel a few inches from the tip. If you have a tall vertical void to treat, you could also drill high in the column and let gravity carry the dust down.
Answer last updated on: 09/19/2017