-Two wet filters on the left and right humidify the inside of the mask and let the moisture enter the dry throat - The three-dimensional design creates a space for the mouth, breathing without a sense of suffocation - Soft wide comfortable earhooks, comfortable to wear without pressure on the ears - The texture is comfortable, and it can be used in general time besides sleeping Size:133 x 96mm Mask: Made in China, Wet filter: Made in Japan ?Instructions? Take out this product, open the filter and put it in the mask, then wear it on your face. (Note: The correct way to wear the mask is to press the nose, and it needs to fit the cheeks and chin tightly without leaving gaps) ?Precautions? ? This product cannot be used to prevent harmful dust, gas and other purposes. ?This product is not suitable for treating throat. ?Keep out of reach of infants and young children. ?Discontinue use if there is an abnormality on the skin or if an abnormality appears. ?Discontinue use if eye irritation occurs. ?Discontinue use if the smell makes you feel sick. ?Open the wet filter before use. ?Do not rub your eyes after touching a wet filter. ?One-time use, do not wash and reuse.