These filters are used in breathing circuits to trap bacteria, viruses, and particulate matter, ensuring clean air delivery to patients. The flat design allows compact integration into ventilation systems without adding excessive dead space. They are commonly used in anesthesia, ICU ventilation, and respiratory therapy. Made from medical-grade materials, they offer high filtration efficiency while maintaining low airflow resistance. Supplied sterile or clean, they are single-use devices that enhance infection control and patient safety in clinical environments.