I. Daily Maintenance and Inspection
Check the air tightness of the pipe joints, valves and interfaces of the oxygen generator for hospitals every week. When checking, you can use the soapy water smearing method to find leaks to ensure that there is no risk of oxygen leakage. Focus on checking the sealing of the molecular sieve adsorption tower to avoid the decrease of oxygen purity due to sealing failure. Regularly check the accuracy of the oxygen pressure gauge and flow meter to ensure that they meet the use standards. The air inlet filter needs to be cleaned daily and replaced every 3 months to prevent dust blockage from affecting the air intake efficiency.

II. Deep Cleaning of Products
External machine cleaning: Wipe the outer shell with 75% alcohol or non-corrosive disinfectant every day. Keyboards, display screens and other easily contaminated areas need to be treated to avoid liquid from penetrating into the equipment.
Pipeline disinfection: Disassemble the external pipeline, soak it with an enzyme-containing cleaning agent to remove sputum stains or organic residues, then use a cleaning and disinfection machine or chemical disinfectant, and finally rinse with sterile water and dry.
Pipes used by infectious patients need to be disinfected separately to avoid cross infection.

3. Maintenance records and personnel training
Establish equipment files, record maintenance time, replacement parts, troubleshooting and inspection results, and keep them on file for future reference. Operators must receive training on equipment use, disinfection procedures and safety regulations, especially the flammable properties of oxygen and emergency response measures.