It takes years of practical experience and training to master specialized skills such as cleanroom product sales and HEPA filter testing. Employee longevity is one key to being able to provide these critical services. Precision Air Technology has 45 employees. Of these, 12 have at least 20 years of experience in the services we offer. We have 21 employees with 10 years of work in the fields of air filtration, HEPA filter testing, and test, adjust, and balance work.