MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202521009947 A) filed by Rara Technologies LLP on February 06, 2025, for “an Improved Ionizer-Based Air Purification System”.
Inventors include Ajaykumar Gunvantrai Shah; and Raghvendra Banchalia.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: “AN IMPROVED IONIZER-BASED AIR PURIFICATION SYSTEM” An improved ionizer-based air purification system is disclosed, comprising a DC power supply (100), a plurality of carbon brush emitter electrodes (102), a support frame, and a grounding plate (106). The system is characterized by its high-efficiency, ultra-low- power operation, utilizing the power supply (100) to apply a stabilized 18 kV potential while consuming only 4 watts. Said potential induces cold emission corona discharge at the sharp-tipped carbon fibers of the electrodes (102), generating a high concentration of negative ions (=30 million ions). The system is designed for safety, operating with a maximum ozone emission verified to be between 0.8 to 4.2 ppb. The negative ions neutralize airborne pollutants, including PM2.5 and bio- aerosols, causing them to agglomerate and settle due to gravitational force, thereby achieving an approximately 89% reduction in PM2.5 and a 99.99% microbial reduction. The high ion concentration also serves to mitigate electromagnetic field effects. Figure. 1
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