1: Use the product in accordance with the intended use of the product in the manual.
2: Wipe and clean the exterior of the chassis at least once a month: pay attention to cut off the power by yourself and wipe with a clean, soft, slightly wet cloth soaked with disinfectant, and prevent the liquid from seeping into the cracks of the chassis.
3: The equipment should be well ventilated, clean and dust-free, and free from harmful gases.
4: When using this product, the flow time of oxygen inhalation should follow the doctor's instruction.