EntityQ13389713· pop 25· linked from 1,305 articlessnorkelSign in to savedevice used for breathing air from above when the wearer's head is face downwards in waterConnectionssurface supplied divingEntitydiving regulatorEntitydiving bellEntityrebreatherEntityDrägerwerkCompanydiving equipmentEntitydiving medicineEntitydiving weighting systemEntitydiving helmetEntityunderwater divingEntitybarotraumaEntitydiving suitEntitydiving cylinderEntityprofessional divingEntitysnorkelingEntitySCUBAEntitydiving chamberEntitygas cylinderEntityfinswimmingEntitydive computerEntityCategoriesBreathing apparatusSwimming equipmentUnderwater diving equipment