evidence: The viral claim stating Camphor, clove, ajwain and eucalyptus oil increase oxygen levels is fake. Experts say there is no scientific basis to the claim. [...] Conclusion: The viral claim stating Camphor, clove, ajwain and eucalyptus oil increase oxygen levels is fake. Experts say there is no scientific basis to the claim. - Claim Review : Camphor, clove, ajwain and eucalyptus oil increases oxygen level - Claimed By : Bharat Palawe - Fact Check : False