Kaytee Natural Pine Bedding and Litter is manufactured with all natural pine shavings specially processed to eliminate dust and wood debris found in other beddings. The natural pine oils help suppress microogranisms and provide a clean， fresh aroma. *Recommended for open， well ventilated cages and aquariums. *Not recommended for closed environments， such as habitrails or in aquariums with limited ventilation. *Contains aromatic oils *