How hot would the Manta STEAM Mask get after placing it in a microwave?

If you microwave the mask for 20 seconds, its temperature would reach about 50°C. The result would slightly vary depending on the power of the microwave you’re using. Always test the temperature of the eye cups with the back of your wrist. If the eye cups are too hot for you, wait for 1 to 2 minutes before using.