Emphasising on judicious use of oxygen, AIIMS Director Randeep Guleria said if a person's oxygen saturation is 93 per cent to 99 per cent, then that person does not need oxygen, and taking it will instead be harmful.

At a talk organised by the Centre's citizen engagement platform, MyGovIndia, Guleria said one of the treatments for Covid-19 is oxygen, but it has to be used judiciously. He added that when a person has pneumonia or chronic lung disease when saturation falls, then oxygen is a treatment, given sometimes for a short duration, but sometimes people are on long-term oxygen therapy.