Claim: People using an oxygen concentrator should keep doors and windows open as it extracts oxygen from open air. It is harmful to shut the room and turn on AC while using a concentrator.
Fact-check: Fact Check: Is it safe to use oxygen concentrator in a closed room? 
Verdict: mostly false
Organisation: India Today
Author: Nishtha Gupta
Date published: 2021-05-05T06:07:25