Wall-mounted energy-efficient air purifiers utilize special high-pressure heads and large-volume blowers to achieve mechanical ventilation and air exchange, improving indoor air quality in a purely physical manner without secondary or derivative pollution. They eliminate the need for pipeline installation and maintenance work, offering cost savings in system construction and low operation costs. Energy-efficient and environmentally friendly, they effectively address the shortcomings of traditional large-pipe fresh air systems, which are expensive, difficult to install, clean, and maintain.