Two sons of Aaron die inside the sanctuary after offering an unholy fire
Leviticus 10:2 NASB
And fire came out from the presence of the Lord and consumed them, and they died before the Lord.
There is no mention of defilement or cleansing ceremony after this incident,just the removal of the bodies from the sanctuary
Leviticus 10:4 NASB
4 Moses called also to Mishael and Elzaphan, the sons of Aaron’s uncle Uzziel, and said to them, “Come forward, carry your relatives away from the front of the sanctuary to an area outside of the camp.
But according to the law anything unclean ie:(death)tended to defile God's presence
Numbers 19:13 NASB
Anyone who touches a dead body, the [k]body of a person who has died, and does not purify himself, defiles the [l]tabernacle of the Lord; and that person shall be cut off from Israel. Since the water for impurity was not sprinkled on him, he will be unclean; his uncleanness is still on him.
Was the sanctuary not defiled after this incident?