Sound-absorbing mask

A sound-absorbing mask configured for covering a mouth, the sound-absorbing mask comprising:

• a covering body having a first chamber, a first opening and a second opening opposite to each other, the first chamber communicating with the first opening and the second opening, the first opening corresponding to the mouth;
• a ventilation structure disposed at the second opening, the ventilation structure having a second chamber, a third opening and a fourth opening opposite to each other, the second chamber communicating with the third opening and the fourth opening, the third opening being at least partially located in the first chamber, the fourth opening being away from the first opening, the ventilation structure comprising at least one plate disposed in the second chamber, the plate having a functioning surface facing to the third opening, an edge of the plate and an inner wall of the ventilation structure having a gap in between;
• and
• a sound-absorbing portion disposed between the ventilation structure and the first opening.