The device being described herein consists of an ultrasonic transducer that is immersed in a liquid containing a solution whose concentration can be varied, a hot air blower with the outlet connected to a duct for conveying the air and liquid mist mixture to the external environment at a flow rate that can be varied according to the prevailing requirements. The transducer surface is covered by a liquid film at all times when the device is in use and this generates a mist whose concentration can be approximated to be the same as that of the liquid. The stream of heated air directs the mist to the external environment. The micron sized droplets dispersed in a stream of hot air are more effective in disinfecting the surface that is undergoing the exposure due to the availability of a higher surface area for the disinfecting agent to act upon. The technology for deploying ultrasonic mist is completely novel and innovative and has been tested for enhanced effectiveness in laboratory incubation conditions against Escherichia coli.
