How can the air quality condition of a place be improved? 

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RRB ALP Instrument Mechanic 23 Jan 2019 Official Paper (Shift 1)
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  1. By adding air
  2. By using a de-humidifier
  3. By filtration of air
  4. By adding moisture to the air

Answer (Detailed Solution Below)

Option 3 : By filtration of air
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Filtration: This is a key strategy for improving air quality. Air filtration systems, such as HEPA filters, can capture a wide range of airborne particles, including dust, pollen, pet dander, and some types of pollutants. High-efficiency filters can significantly reduce indoor air pollution.

  • Air filtration involves drawing air through a filter medium designed to capture particles and contaminants, ranging from dust and pollen to bacteria and viruses.
  • As air passes through the filter, particles become trapped, resulting in cleaner air on the other side.
  • Regular maintenance is crucial to ensure optimal filtration efficiency.
  • Filtration systems are widely used in homes, offices, hospitals, and other settings to improve indoor air quality and promote a healthier environment for occupants.

Here, option 3 is correct.

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