IIT Roorkee has developed a low-cost portable ventilator that can be useful to ensure the survival of COVID-19 patients. Named as ‘Prana-Vayu,’ the closed-loop ventilator is developed in collaboration with AIIMS, Rishikesh, and is equipped with state-of-the-art features. The ventilator is based on the controlled operation of the prime mover to deliver the required amount of air to the patient. …