Bakman Technologies LLC, manufactures THZ spectrometers, and photomixers. The company has created a product called the THZ drone. The drone can accurately detect and classify detrimental compounds within the air. The THZ drone is a 2 channel spectrometer that can perform spectroscopic scans from 1.0 to 1.5 THz, and measure both transmitted and reflected THz power. The THZ drone is essential in detecting air pollution.