The research aimed to assess the effect of gel and spray air freshener exposure on alveolar histology of Rattus norvegicus at early age. The research design is pure experimental, with the approach of the post-test only control group design. Research subjects are 30 male white rat at early age (7th day) (Rattus norvegicus) Spraque Dawley, divided into 10 rats for each group gel (P1), spray (P2), and control (K). The exposure of gel and spray air freshener for 67 days up to a maximum dose of 4.5 hours/day, followed by surgery and made preparations for histopathological test. Data is analyzed by Kruskal-Wallis method, followed by Mann Whitney test.