51results about How to "Reminder to replace" patented technology

The invention discloses a novel haze resisting mask with a filling air bag. The mask comprises a mask body, the filling air bag and fastening belts; each of the left and right of the mask body is provided with a static-force adjustable dual-purpose fastening belt; the filling air bag is arranged on the part, opposite to the nose bridge, of the interior of the mask body, a respiratory valve, a replaceable filter core or a standardized member is installed on the mask body, a gray level detector is installed on the filter core, the standardized member is screwed on the side, close to the face, ofthe filter core or fixedly clamped to the side, close to the face, of the filter core, the filling air bag is provided with an inflation port and an air discharging port which can be opened and closed, and the filling air bag can be connected with the air bag supporting frame in the mask. The mask has the advantages that the design is reasonable, air tightness and comfort can be taken into consideration by the filling air bag, the mask is light and can be repeatedly used, and the fastening belts are comfortable and can provide more wearing manners. The novel haze resisting mask is provided with the gray level detector so that a user can be reminded to replace the filter core, and the mask surface is well supported by the air bag supporting frame on the inner side of the mask surface to prevent the fitting of the mask surface and the face.