TRAIRF specialized in Manufacturing,Research & Development and Marketing all kinds of air filter including PreFilter, Medium Filter, HEPA Filter, Filter element, purifying equipment &clean-room products etc.We own the most advanced computer-controlled tinderbarrier-free air filter, a clapboard air filters and folding filter automaticproduction line, has perfect testing equipment and dust-free clean productionworkshop.TRAIR® Air Filter are widely used in semiconductor, nuclear industry,electronics, medicine and health care, biological experiment, food andbeverage, electrical equipment, environmental protection, chemical industry,coating, automotive and other fields.Tianrui's quality management system hassuccessfully obtained ISO9001 &CE certification.