Year Founded
1961

Headquarters
Shoreview, Minnesota, USA, a St. Paul suburb

Facilities
Total of 425,000 square feet devoted to product development, manufacturing and customer support. Three locations in Shoreview; MN, Auburn, IL; and Knoxville, TN.

Sales Offices
North America, Germany, Sweden, France, United Kingdom, China, India--with representatives worldwide.

Number of Employees
Approximately 800 total

Product Lines

» Aerosol generators and dispersers
» Atmospheric monitoring
» Automated Filter Test
» Biomedical test equipment
» Certification instruments
» Chemical characterization
» Combustion gas analyzers
» Critical environments monitors/controllers
» Exposure monitoring
» Indoor air quality
» Laser Doppler velocimetry
» Mass Flowmeters
» NBC protection
» Particle counters and detectors
» Particle image velocimetry
» Particle sizers
» Phase Doppler particle analyzers
» Respirator fit testing
» Thermal anemometry
» Ventilation test instruments


Subsidiary Companies

» Environmental Systems Corporation, Knoxville, TN
» DICKEY-john Corporation, Auburn, IL

Ownership
JJF Group, Inc.