Information from 360PersonalLibrary.com, in medicine, "10 atm air pump" usually refers to an air pump that withstands 10 atmospheres, i.e., it can withstand 10 atmospheres of pressure. This type of air pump is often used in medical devices, such as blood pressure monitors, oximeters, and ventilators, to provide adequate air pressure support.
For example, in a ventilator, a 10 atm air pump can provide sufficient air pressure to keep the patient's airway open and prevent complications such as airway collapse and hypoxemia. In a sphygmomanometer, the 10 atm air pump can provide enough air pressure to allow the cuff of the sphygmomanometer to completely wrap around the patient's arm to ensure the accuracy of the blood pressure measurement.