An infant and child bonnet for securing a breathing tube includes a cap body and an elastic fixing band. The cap body includes a first opening and a second opening corresponding to each other and includes a first connection portion. The elastic fixing band is connected to the cap body. One end of the elastic fixing band includes a second connection portion flexibly fixing the breathing tube. The second connection portion is joined to the first connection portion. Accordingly, the infant and child bonnet suits various head sizes and shapes and effectively fixes the breathing tube without displacement or detachment.一種嬰幼兒帽套，適於固定一呼吸管，包括一帽本體及一彈性固定帶。帽本體開設有相對應的一第一穿套口和一第二穿套口及一第一結合部。彈性固定帶連接帽本體，彈性固定帶一端設有彈性地固定所述呼吸管的一第二結合部，第二結合部結合第一結合部。藉此，適於各種不同嬰幼兒頭圍且能夠有效固定呼吸管而不會移位或脫落的嬰幼兒帽套。
