The definition of H13 filtration level refers to the ability of the filter to filter out at least 99.95% of 0.3 micron particles under specified testing conditions. This means that H13 filtration grade filter cotton has high filtration efficiency, which can effectively improve indoor air quality and reduce people's exposure to air pollutants.

The selection of H13 filtration level has a significant impact on the performance of air purification equipment. A higher filtration level can provide better filtration efficiency, but it also requires more energy and equipment to achieve. Therefore, when selecting air purification equipment, it is necessary to determine the appropriate filtration level based on specific needs and environmental conditions.

H13 filtration level is a high-efficiency air filter used for air purification, with high filtration performance. Choosing the appropriate filtration level can improve the performance of air purification equipment and improve indoor air quality.