Anything that one of them dies and lands on becomes unclean. Whatever it is—something made of wood, clothing, leather, sackcloth, or any work tool—it must be washed with water and will be unclean until the evening. Then it will become clean.
The priest must order the house to be emptied before he goes in to inspect the mold, so that nothing in the house will be declared unclean. Once that's done, the priest is to go in and inspect the house.
The following regulation applies when a person dies in a tent. Everyone who comes into the tent and everyone who is already in the tent will be unclean for seven days.
If you're out in the open and you touch someone who has been killed by the sword or who has died naturally, or if you touch a human bone or a grave, then you'll be unclean for seven days.