Model Number: TX-02 Product name : handhold Negative pressure sputum : Negative pressure system method: oxirane Colour:White New Manual Portable Suction Pump Specifications Material: Plastic Limit the negative pressure value is not less than 0.025 MPa. Store liquid bottle contains 150 ml or more. The connection is firm degree should not be less than 4N. Performance characteristics a Adopt negative pressure system. b Small volume, light weight, easy to carry. c Safe and reliable, no fragile and materials, not cause harm to human body. Method of use 1 The sputum suction tube treatment, trial operation with water, experience the sputum suction process. 2 the patient's mouth sputum suction tube inserted into the appropriate parts, fast frequency by the pressure controller. 3 When using liquid in the liquid storage bottle up to two-thirds of volume, the liquid in the bottles must be clean again. Package Contents: 4 x Manual suction device 8 x straws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.