The country had faced shortage of medical oxygen due to the second wave of corona infection. There was a lot of commotion among the patients to purchase oximeters that determine oxygen levels. There were many mobile applications that claimed to indicate the amount of oxygen in the body of the patient or the common man. But doctors believe that there is no technology in mobile application that can indicate the amount of oxygen in the body. Using these applications can put the patient's life in danger. Dr. Ravi Mohta said that taking advantage of the shortage of oxygen, many oximeters came to the market which do not meet the government's rules and standards and the patient does not get the right information when they are used. Therefore, it is necessary to check before buying oximeter. Ravi Mohta described the use of a mobile application describing oxygen altogether, which also contained oxygen saturation. But giving oxygen separation in the application made it clear that he did not claim to be accurate. There are currently more than two dozen apps in the market that claim to indicate oxygen saturation without an oximeter. Dr. Ravi Mohta said that mobile application is not in accordance with government rules and norms. While oximeters are also for use at home or on the way. The hospital has large machines to check various levels including oxygen, heartbeat. The second wave has caused problems for oximeters imported from China. In such a situation, people should check the oximeter from the right place and on a firm bill. Study claims People afraid of catching Covid are more judgmental The Conjuring: The Devil Made Me Do It beats A Quiet Place Part II this weekend at US box office Jennifer Lopez moving to Los Angeles to be with Ben Affleck?