New home phlegm suction machine, unopened from the carton The Yuwell 7E-A phlegm suction machine is an electric medical device designed to remove mucus, phlegm, and fluids from the respiratory system. The device operates on direct electricity and features high suction power (up to 17 liters/minute), an oil-free, maintenance-free pump, and a 1000 ml tank with an overflow protection system. Here are the most prominent specifications and uses of the device: Use: Suitable for adults and children, and is used in emergencies, at home, in hospitals, and for patients who have difficulty breathing or expelling phlegm. Design: Strong and lightweight plastic body, equipped with a pressure indicator and a precise suction regulator control on the front panel. Accessories: Often comes with a set of tubes and bacterial filters.