9 Scientific apparatus and instruments, namely, air analysis apparatus, engine exhaust test instruments, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; electronic carbon dioxide monitors, other than for medical purposes; measuring instruments, namely, electric, electronic, or electrochemical oxygen monitors and sensors for environmental use; air analysis apparatus; electronic carbon dioxide monitors other than for medical purposes; monitoring apparatus other than for medical purposes, namely, electronic monitors for monitoring flowmeters; atmospheric oxygen monitors, air analysis apparatus, carbon dioxide detectors, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; air processing apparatus, namely, electronic air processing systems comprised of carbon dioxide detectors and monitors for carbon capture and geological storage, namely, capture of carbon dioxide and storage of the carbon dioxide in the subsurface of the earth; air processing apparatus, namely, electronic air processing systems comprised of carbon dioxide detectors and monitors for greenhouse gas reduction services utilizing a chemical process that operates on effluent gas streams from industrial process plants and other sources that generate carbon dioxide and provides treatment of greenhouse gases