Removes bodily fluids such as mucus, blood, or other secretions during surgery or emergency care.

An oil-free dual-cylinder piston pump is used as the negative pressure source, offering high air extraction efficiency without oil mist contamination; supports three power supply modes: AC, external DC, and built-in battery; the built-in battery can operate continuously for over 1 hour when fully charged; uses constant voltage and current-limited charging, allowing the battery to be charged while operating on AC 220V.