This knob is part of a medical ventilator.
When a person's lungs are actively ventilated, the incoming air is too dry. Therefore this air must be humidified. This plastic booster evaporates water and can withstand a continuous operating temperature of 150 °C. It also satisfies the high accuracy requirements, and electrical voltage and water remain strictly separated. The booster is made of a biocompatible material to ensure the patient’s safety. The product also includes a light guide, switch and small magnet. Alligator worked out the technical details in collaboration with another party.