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An air purification system that utilizes electrically charged filter media to capture airborne particles. This technology employs a two-stage process: first, particles entering the system pass through an ionizing section that imparts an electrical charge. Subsequently, these charged particles are drawn to and trapped by the oppositely charged filter media. This electrostatic attraction enhances the filter’s ability to capture smaller particles, like dust, pollen, and smoke, that may bypass traditional mechanical filters. A common residential application involves integrating this system into a home’s central heating and cooling system for whole-house air filtration.

This type of air cleaning offers several advantages. The enhanced capture efficiency can lead to improved indoor air quality, potentially reducing allergens and respiratory irritants. Some systems also boast lower pressure drop compared to high-efficiency particulate air (HEPA) filters, resulting in less strain on the HVAC system and potentially lower energy consumption. Historically, advancements in materials science and electronics have contributed to the refinement of these systems, making them more efficient, durable, and easier to maintain. Their ability to remove a broad spectrum of airborne contaminants has made them a popular choice for those seeking enhanced air purification.

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