| abstract |
The utility model discloses a realize independently ventilative, the good glasses gauze mask that prevents that laminating nature fogs belongs to medical protection technical field. The nose wing filter comprises an autonomous air-permeable filter membrane window, a detachable nose wing sealing structure, a first supporting strip, a first tightening rope and a second tightening rope; the mask is well attached to the face of a wearer and is airtight through the design that the detachable nose wing sealing structure is matched with the tightening rope, the problem that exhaled hot air flows through the glasses from the nose wing to generate fog is solved, and sufficient breathing space is reserved at the mouth and nose through the design of the supporting strip; and through a filter membrane window of independently breathing freely, utilize the window along with exhaling, breathe in independently open and closed characteristics, realized the autonomic gas permeability of gauze mask, because nose wing seal structure reuse, filter membrane window cost also far is less than filtration box, the utility model discloses can realize mass production, popularization. |