Break the chain India

Can oxygen cans be used as a substitute to oxygen cylinders in times of scarcity such as these?
 Oxygen concentrator : Atmospheric air has roughly 78 percent nitrogen and 21 percent oxygen. Oxygen concentrators take in the ambient air and increase t...
Wed, 5 May, 2021 at 5:27 AM
Break the chain India
Q- What is the best way to protect us and our families from COVID-19 Now? The best way to protect you and your families from COVID-19 is Get vaccinate...
Wed, 5 May, 2021 at 8:49 AM