Dobson Units
Measurement unit for determining the total amount of ozone present in a vertical column of air above the surface of the earth. An air layer at atmospheric pressure of 1013 hPa and temperature of 298 K which measures 1 mm in thickness and is equivalent to 100 dobson units.

We provide this glossary to assist clients in the selection and operation of our complete line of Ultra-Pure Laboratory Ozone Generators, Ozone Gas Analyzers, and Ozone Accessories, as well as services such as material exposure testing.