CE Certified Bacterial Filter For Oxyconcentrator is a device that is designed to filter out bacteria and other harmful contaminants from the air that is being circulated through the oxygen concentrator. A bacterial filter for an oxygen concentrator is an important component that helps to prevent the spread of infections and diseases, especially in healthcare settings where patients may have weakened immune systems. The filter works by trapping bacteria, viruses, and other harmful particles as the air passes through it, ensuring that the air that is delivered to the patient is clean and free from harmful contaminants.