All 3 products from Chengdu Tianrui Air Purification Equipment Co.,Ltd.

This F7 pocket air filter is designed for industrial air filtration, offering secondary efficiency. Its synthetic fiber construction captures fine particles while maximizing airflow and extending service life.

This HEPA air filter achieves 99.99% efficiency at 0.3 micron particle size. It is constructed with protective mesh, offering low resistance, large airflow, and high leakproofness.

This HEPA air filter features a deep pleated design. It provides high levels of particulate filtration for clean air in critical environments.