[PPSC Principal, HM and BPEO, 2020]

36. Swasth Vayu is

1. A campaign under Tandarust Punjab to raise awareness against stubble burning

2. An Air Quality Index developed by Punjab Pollution Control Board

3. A non-invasive Ventilator to treat COVID-19 patients

4. A campaign started in Nagpur to check the dwindling forest cover of Maharashtra

Correct Answer :

A non-invasive Ventilator to treat COVID-19 patients