The Hepa tester is a professional device for testing the performance of high - efficiency air filters. It uses advanced detection technologies to accurately measure key parameters such as the filtration efficiency and resistance of the filters. The instrument has a sturdy outer shell and a precisely designed internal circuit to ensure the accuracy and stability of the test results. Its advantages are simple operation and fast detection speed, which can quickly evaluate the performance status of Hepa filters. Widely used in places such as air - conditioning systems and cleanrooms, it helps users timely understand the filter performance, reasonably replace or maintain the filters, ensure air filtration effects, and improve indoor air quality.