| 摘要 |
The present invention relates to a mask for protecting respiratory organs from dust or a virus. The mask for protecting respiratory organs comprises: a middle leaf having four corners; an upper leaf extended and bent from an upper portion of the middle leaf and joined to both sides of the middle leaf on a joining line, in which a nose clip having an expected bending line on an arc inclined downwards to both sides is embedded and fixed; a lower leaf which is extended and bent from a lower portion of the middle leaf, is joined to both sides of the middle leaf, and has an expected bending line on an arc whose both sides are inclined upwards; and a wearing band fixed on the four corners. The upper and the lower leaf have joining areas with the middle leaf near the joining lines on both sides to provide the mask for protecting respiratory organs having three-leaf filtering fabric. Since the mask in accordance with the present invention does not join or cut except both sides, a fusion joining process by an ultrasonic wave is relatively simple. Loss of the filtering fabric by joining and cutting is markedly reduced, and the area of the filtering fabric is maximally utilized. |
