Air Hygiene International is an emissions testing company based in Broken Arrow, OK. Their clients are located all over the United States and across 4 continents. Qualifications. High school diploma, experience working outdoors. Not bothered by heights of 200ft with OSHA approved ascending/descending and platform. Hours. Entails 75% travel, so overtime is expected. 40-80 hours per week. Supervisor. Director of Operations, various Testing, Field, ...