This invention relates to a nozzle for surgical suction apparatus, such as a Yankauer (100). The nozzle (100) comprises a suction tube (110) that is adapted for connection to the suction device at its connection end (120) and for location in the surgical area of a patient at its suction end (150). The nozzle (100) includes a finger controllable suction controle aperture (142) and a filter constituted by a gas permeable, liquid impermeable membrane (144) that is incorporated in a plug (125) adapted to fit into the suction control aperture (142). The invention includes a method of operating such a nozzle (100).
