Firstly, regarding moisture absorption and heat retention, one of the core functions of HME (Heat and Moisture Exchange) filter paper is to mimic the warming and humidifying effect of the human upper respiratory tract on inhaled air. The high absorbency of 220% means that this filter paper can efficiently capture moisture from exhaled air during respiration and release it again during inhalation, effectively reducing airway dryness and lowering the risk of complications such as airway irritation and thickened secretions. This is particularly crucial during prolonged mechanical ventilation or anesthesia.

Secondly, the 99.999% filtration efficiency fully demonstrates the product's superior infection control capabilities. Its high-efficiency filtration effectively blocks bacteria, viruses, and microparticles, reducing the risk of cross-infection and providing dual protection for both patients and healthcare workers. Given the increasingly stringent requirements for hospital infection control, disposable high-efficiency filter materials have become a basic requirement in clinical settings.

In terms of structural and material design, the circular design not only facilitates uniform airflow but also reduces breathing resistance, improving patient comfort. The 0.15–0.6 basis weight range ensures the filter paper maintains good breathability and a balanced resistance while ensuring strength and filtration performance, without affecting ventilation efficiency or increasing respiratory burden.

Furthermore, the disposable design concept further enhances the safety and convenience of clinical use. No washing or repeated sterilization is required, saving healthcare workers' time and avoiding the potential contamination risks associated with reuse, making it particularly suitable for high-turnover hospitals and emergency scenarios.

In conclusion, disposable circular HME filter paper plays an irreplaceable role in respiratory therapy and anesthesia management due to its high absorbency, high filtration efficiency, and scientifically designed weight. It not only reflects modern medicine's dual pursuit of safety and functionality but also provides a solid guarantee for improving the quality of patient care. With the continuous advancement of medical technology, this type of high-performance, standardized disposable consumable will demonstrate even broader application prospects in clinical practice.