It was assumed that the residuals for the saturation temperature follow a normal distribution. To test this hypothesis, vapor pressure data for the solvent, ethanol, was sourced from the Dortmund Data Bank . This data was then compared with the The K-S test was employed to validate the assumption of a normal distribution. The null hypothesis of this test posits that the sample is drawn from a normal distribution with a mean of zero and a standard deviation of approximately 0.1468. The K-S test provided a p-value of 0.1285, suggesting insufficient evidence to reject the null hypothesis. This result indicates that the residuals of the saturation temperature of ethanol appear to follow a normal distribution. Notably, the saturation pressure is the primary variable of interest in the perfume diffusion model. When isolating P in the Antoine formula, the resulting probability density function (pdf) for saturation pressure appears to follow a lognormal distribution. This is consistent with the lower boundary of this variable, which is greater than zero.