This creative department provides a respirator headband structure, which includes a extensible band and a first band and a second band and a third band and a fourth band, wherein the first band and The second belt body, the third belt body and the fourth belt body are provided with the extensible belt body at one end, and the first belt body has a first top belt portion and a first side belt portion and is respectively provided with a first top A fixing member and a first side fixing member, and the second belt body has a second top belt portion and a second side belt portion and is provided with a second top fixing member and a second side fixing member, and the third belt body And the fourth strap body are respectively provided with a third side fixing member, a first hooking member, a fourth side fixing member and a second hooking member, by which the first side strap portion and the first hook The fastener and the second side strap portion and the second hook fastener are quickly assembled with a respirator, and the stretchable strap body can be used to avoid wearing too tight or too loose, and can also be limited by the fixing member to avoid Dropped out of the respirator, separated from the first side band part and the third band body and the first side band part and the fourth band body, so as to achieve easy combination and adjustment Avoid tight and his eyes were shedding and reduce the efficacy of the visually impaired.本創作係提供一種呼吸器頭帶結構，係包括有一可展帶體及一第一帶體及一第二帶體及一第三帶體及一第四帶體，其中該第一帶體及第二帶體及第三帶體及第四帶體一端組設所述可展帶體，並該第一帶體具有一第一頂帶部及第一側帶部且分別設置有一第一頂固定件及第一側固定件，而該第二帶體具有一第二頂帶部及第二側帶部且分別設置有一第二頂固定件及第二側固定件，另該第三帶體及第四帶體分別設置有一第三側固定件、一第一勾扣件及第四側固定件與一第二勾扣件，藉此，可透過所述第一側帶部及第一勾扣件及第二側帶部及第二勾扣件與一呼吸器快速組設，且可透過所述可展帶體來避免穿戴過緊或過鬆，更可經由固定件進行限位以避免脫落於呼吸器，與第一側帶部與第三帶體及第一側帶部與第四帶體間分隔設置，進而達到可方便結合且調整鬆緊及避免脫落與降低眼角視覺障礙之功效者。
