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Susceptibility of airborne ultrasonic power to augment heat and mass transfer during hot air dehydration of peppermint leaves was investigated in the present study. To predict the moisture removal curves, a unique non-equilibrium mathematical model was developed. For the samples dried at temperatures of 40‒70 °C and the power intensities of 0‒104 kW m -3 , the diffusion of moisture inside the leaves and coefficients for of mass and heat transfer varied from 0.601 × 10 -4 to 5.937 × 10 -4  s -1 , 4.693 × 10 -4 to 7.975 × 10 -4  m s -1 and 49.2 to 78.1 W m -2  K -1 , respectively. In general, at the process temperatures up to 60 °C, all the studied transfer parameters were augmented in the presence of ultrasonic power., Competing Interests: Conflict of interestNot applicable., (© Association of Food Scientists & Technologists (India) 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)