AIR IONIZER
- April 6, 2021
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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AIR IONIZER
Subject : Science & tech
Context : Governments and businesses should encourage new technologies to control the spread of the virus and enable ‘opening’ of offices, schools, colleges and cinemas rather than lockdown
Concept:
- An air ioniser (or negative ion generator or Chizhevsky’s chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules.
- Negative ions, or anions, are particles with one or more extra electrons, conferring a net negative charge to the particle.
- Cations are positive ions missing one or more electrons, resulting in a net positive charge.
- Some commercial air purifiers are designed to generate negative ions. Another type of air ioniser is the electrostatic discharge (ESD) ioniser (balanced ion generator) used to neutralise static charge.