evidence: Fact check: Does Inhaling camphor, lavang, ajwain, few drops of eucalyptus oil increase blood oxygen levels New Delhi, Apr 19: A viral message being shared on the social media and chat groups claim that by inhaling camphor, lavang, ajwain and few drops of eucalyptus oil, the blood oxygen levels are increased and this can relieve respiratory distress. [...] Inhaling camphor, lavang, ajwain and few drops of eucalyptus oil increases blood oxygen levels