Product Details: ・ AC-powered continuous low-pressure aspirator Although it is new and unused, it has been turned on to check its operation. Maximum output: 3.0L/m Pressure: Weak 14kPa / Strong 20kPa Adjustable with a dial! ☆Options☆ ・ Tube @10cm 50 yen ・ 2-hole saliva bottle 300 yen Please comment with the quantity you need♪ Compact and quiet, it provides strong suction! If you have a battery that can use an outlet, it's also convenient for carrying around♪