... rather than mask undesirable smells,leaving a fresh-clean scent .2,Purifies the polluted air naturally.Available with lemon ,jasmine ,lavender ,sandalwood ,oudh ... ,ship.4,Available for 7-10days under normal condtion .5,Air refreshners of different aroma ,such as apple ,cinnamon,peppermint,pine ... ,shelf life:12 months5,Nontoxic ,biodegradable absolutely safe hanging paper air freshner for car