The LingNai LN-PM Return Air Vent Plasma Micro-electrostatic Air Purifier utilizes plasma disinfection technology and EMP electrostatic channel dust removal technology. It can be directly installed at the return air vent and is also compatible with the under-return air boxes of fan coil units from all air conditioning manufacturers. Installation is simple and maintenance is convenient.

A single unit can generate tens of millions of ions, making indoor air as fresh as a forest waterfall. The needle electrode glow discharge technology ensures zero increase in ozone concentration, with an adsorption efficiency of up to 95% for 0.3μm particles; no electric field sparking phenomenon occurs. It features a built-in airflow sensing device that operates synchronously with the air conditioning system, and is equipped with local and safety switches for safer maintenance, operation, and cleaning indicators. It also includes a building automation system interface for convenient property management. The product achieves a one-time dust removal efficiency (PM2.5) of 90%; with low air resistance and a pressure loss of <15Pa.