Smell was coming from the filter I have checked the filter and cleaned it properly and also the company customer service also cleaned but the smell was too heavy fungus smell was coming out performance was good sound was low current consumption is also reasonable but we have to clean filters every month twice to get max performance the maximum time the ac is 13 hours the outdoor unit sound so much if you keep close to indoor unit you will be experience some sound problems you have to service it twice a year to get maximum performance