The priest must order that the house be cleared before he enters it to examine the mildew, so that nothing in the house will become unclean. After this, the priest shall go in to inspect the house.
KJV
Then the priest shall command that they empty the house, before the priest go [into it] to see the plague, that all that [is] in the house be not made unclean: and afterward the priest shall go in to see the house:
ASV
And the priest shall command that they empty the house, before the priest goeth in to see the plague, that all that is in the house be not made unclean: and afterward the priest shall go in to see the house: