Long life double piston cylinder which requires no lubrication ordaily maintenance produces no polluion to the environment and can provide high vacuum/high flow
The negative pressure regulating system can be controlled step lessly according to the viscosity of the phlegm and mucusfor the selection of frequired negative pressure value. Normal phlegm aspiration: 0.027-0.053Mpa((200-400-mmHg)maximum negative presssure value for emergency phlegm aspiration: 0.08Mpa(600mmHg)
Overflow protection device can safely and efficiently prevent the liquid from entering into the jump; And the air emitted by the pump is prefiltered by a bacterial filter which provides and effedctive barrier against contamination and protection to the environment;
The unit features convenient operation, safey in use, low noise, low power consumption, and easy to carry.