The project focuses on developing techniques in the field of environmental protection and addressing practical environmental hotspot issues. The air purification analysis and control for human settlements involved in this project is a hotspot and difficult issue in Beijing and even across China. It develops cutting-edge technologies and methods in different application fields, fills the corresponding research gaps, provides technical support and solutions for the current difficult issues across society and industry, and brings health protection for the public. The main products of the project include: (1) filter material products for air purifiers and vehicles; (2) ductless ventilation system equipment products for new laboratories; (3) integrated equipment for catering oil fume purification and online monitoring.