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Royal Caribbean cruise lines has filed a patent for its own line of masks — “seaface.”

Royal Caribbean registered the trademark April 8 for the sanitary masks for “virus isolation purposes,” according to the U.S. Patent Office.

Face masks and other personal protective equipment have been difficult for health care workers and other employees to get as the coronavirus has spread across the globe.

The cruise line suspended service March 15. It extended the suspension through June 11.