Starting May 4, Cape Air passengers must wear masks or other face coverings while at the check-in counter, in the gate area, on board, and while boarding and deplaning.

“We encourage the use of your own personal mask but will have a limited supply on-hand should you forget to bring one for your flight,” airline CEO Dan Wolf and president Linda Markham wrote in a statement released Thursday.

Aircraft are being sanitized between flights and fresh air is circulated constantly, the Cape Air executives wrote.