What kind of oil goes on the piston of the Fisheye home aspirator

Lubricating oil. Yuyue home sputum aspirator is to prevent the patient's respiratory tract obstruction, rescue asphyxia indispensable an important tool to keep the respiratory tract open, to prevent aspiration pneumonia, atelectasis, asphyxia and other complications, its piston on the lubricating oil, not on the lubricating oil piston leakage, wear and tear is too large, the use of oil-free lubrication of the piston pump, the square negative pressure table and hide the buried reservoir bottle, low noise, small volume, easy to carry, suitable for adult It is low noise, small size, easy to carry, suitable for adult sputum suction.