Electrostatic precipitators remove particles down to 0.01 microns using high-voltage ionization and collection plates, delivering 80-95% collection efficiency. These devices ionize airborne particles and collect them on metal plates through electrostatic attraction. Commercial units process 500-2000 CFM with minimal pressure drop of 0.1-0.3 inches of water column.
Operating Principles
Charging electrodes emit corona discharge that ionizes particles, which then migrate toward collection plates. Power consumption ranges from 50-150 watts depending on airflow capacity. Collected particles require weekly or monthly removal depending on air quality and usage intensity.
Applications and Benefits
Electrostatic precipitators excel in high-contamination environments including restaurants, manufacturing facilities, and healthcare settings. Compared to HEPA filters, precipitators reduce replacement costs by 60-70% annually. Installation typically requires professional ductwork modifications costing $1,500-$4,000, with operating expenses around $100-$200 yearly for cleaning and maintenance.