Portable Phlegm Suction Machine 7E-A is a newly designed oil-free lubrication pump based on extensive design experience and development. It is specially designed for absorbing thick liquid such as blood, phlegm etc. It is not only used as aspirator in operation room, emergency room, but also at home as health care product. It is a brand-new mechanism design with suction bottle hidden inside and square negative pressure meter crust completely made of plastic. This design not only reduces the working noise but also makes it more fashionable and precise.