Q. 1. What is the purpose of the "Purificator" in the Catholic Church?
A. 1. The Purificator is a small piece of white linen, marked with a cross in the center, used by the priest in the celebration of the Holy Mass. It is folded in three layers and used by the priest to purify his fingers and the Chalice and Paten after Holy Communion.
The Purificator, also known as the purificatorium or more anciently emunctorium, is also used to wipe the Chalice after each communicant drank the Blood of Christ.