Numbers 19:15

and any open container without a lid tied on it is unclean.

Leviticus 11:32

When any one of them dies and falls on anything it becomes unclean—any item of wood, clothing, leather, sackcloth, or any implement used for work. It is to be rinsed with water and will remain unclean until evening; then it will be clean.

Numbers 31:20

Also purify everything: garments, leather goods, things made of goat hair, and every article of wood.”

Leviticus 14:36

The priest must order them to clear the house before he enters to examine the contamination, so that nothing in the house becomes unclean. Afterward the priest will come to examine the house.

Treasury of Scripture Knowledge did not add