A liquid fragrance formulation is provided. The fragrance formulation has a viscosity in the range of 0.0 to 9.0 cPa, a calculated water-octanol partition coefficient in the range of &minus1.0 to 4.0 and a surface tension in the range of 0.0 to 25.0 mN/m and is suitable for use in air fresheners, particularly nebulizing scent delivery devices.