To select the right oxygen generator for your hospital, the first step is to figure out how much oxygen your hospital needs and where it will be used. You can calculate the total amount based on the number of beds and departments. For example, each bed in a general ward typically requires about 0.5-1 liter of oxygen per minute, while patients in the ICU need 5-10 liters per minute. The operating room should also have some extra oxygen reserves to accommodate different surgeries. It is recommended to add 20%-30% to the calculated amount to prevent insufficient supply in case of emergency rescue, additional beds, or equipment maintenance. Additionally, different scenarios have different requirements for oxygen. General wards require a purity of over 93% and a stable flow rate. The ICU requires a purity of over 95% and the ability to quickly adjust the flow rate without oxygen interruption. The neonatal department has even stricter requirements, demanding a purity of 99.5% and precise control of the flow rate. When choosing, you should select the corresponding generator based on the specific scenario.