The invention discloses a mask for invasive medical device. The mask comprises a mask body having a cover portion which is outwardly raised to form a chamber therein for covering the users nose and mouth and is provided with an opening. A dialing valve is rotatably arranged around the opening. A sleeve hole is formed at the dialing valve. When the sleeve hole of the dialing valve is rotated to a first position, the sleeve hole is aligned with the opening and communicates the opening for receiving a tube having a first diameter of a medical probing device through the sleeve hole and the opening. When the sleeve hole is rotated to a second position, the sleeve hole is not aligned with the opening so that the opening is closed. Accordingly, through selecting a required diameter by rotating the dialing valve, the tube of the medical probing device having the required diameter may conveniently and easily reach to the inside of a human body, thereby achieving a better human medical probing and respiratory air tightness effect.本發明係揭露一種侵入式醫療器材專用面罩,其包括面罩本體,面罩本體包含向外隆起使內部形成供罩覆口鼻部位之腔室的罩覆部,罩覆部設有開孔,開孔周圍可轉動的設置撥轉閥片,於撥轉閥片穿設有套孔。當撥轉閥片之套孔轉動至第一位置時,套孔則對準開孔而相通,以供醫療探視裝置之第一種孔徑尺寸的管體自套孔及開孔穿入。當第一套孔轉動至第二位置時,套孔則無法對準開孔而封閉,俾能藉由撥轉方式選擇所需孔徑,使醫療探視裝置之所需尺寸的管體得以方便且容易地伸入至人體內部,進而達到較佳的人體醫療探視與呼吸氣密性效果。10‧‧‧面罩本體11‧‧‧罩覆部110‧‧‧開孔111‧‧‧套接管112‧‧‧凹槽12‧‧‧腔室20‧‧‧撥轉閥片201,201a,201b,201c‧‧‧套孔21‧‧‧導塊22‧‧‧蓋板220‧‧‧穿孔221‧‧‧嵌片23‧‧‧止滑條27‧‧‧包覆層