Clean your mask regularly, once or twice a month, or after each session if shared or used on skin prone to blemishes.
After your session, remove the mask and unplug it. Use a soft, slightly damp cloth to wipe the surface and remove any residue. If necessary, use a mild cleanser or a disinfecting wipe, especially recommended for shared use. Never wet the electronic parts (LEDs, wires, connectors). Let it air dry completely before storing in a clean, dry place.