Hebrews 12:24 speaks of Christ's sprinkled blood that speaks a better word — the ultimate fulfillment of the blood purification described here.

Leviticus 16:14-19 details the Day of Atonement sprinkling on the mercy seat and altar — the very ritual Hebrews 9:21 summarizes as tent and vessel purification.

Exodus 29:12 describes blood on the altar horns and base — part of the same consecration ritual but not directly about tent/vessels.

Exodus 29:20 details blood on priests' ears, thumbs, toes — a consecration element, but not the tent/vessel sprinkling Hebrews mentions.

Exodus 29:36 prescribes daily sin offerings to purify the altar — a related purification, though Hebrews focuses on tent and vessels.