On June 12th, through an on-site assessment of China Metrology Accreditation, the Indoor Air Purification Assessment and Testing Center of SITI basically passed the verification and is now in the phase of adjustment.

Established in September 2016, the Indoor Air Purification Assessment and Testing Center adheres to the quality policy of being fair, scientific, accurate and honest, and aims to serve the people's well-being. With the improvement of human resources, environmental conditions, equipment configuration and internal management, it has already been qualified for carrying out air purification products and indoor air testing. It accepts the mandates of government departments, organizations, enterprises, institutions and individuals, and tests the quality of air purification products and indoor air so as to protect the interests of the country, producers, operators and consumers, and promote the improvement of indoor environmental quality.