The present invention provides compounds that are useful for inhibiting the proliferation of fungi. The system uses an interactive interface and blue tooth software that combines remotes, an interactive balance board and infra-red head sensors. The flow rate controllers are configured to adjust a rate of carrier gas flow into and out of the vaporizer chamber through the gas input and output lines. Variations in reflected light intensity caused by non-uniform film thickness on the surface of the sample are therefore reduced and shading minimized in the detected image to allow detecting fine defects.