Commitment to the Industry and Neighborhood BGI recently completed a renovation of the outside of its headquarters in Waltham, Massachusetts. BGI has produced its USA designed and manufactured products at the 58 Guinan Street location since 1972. In business for over 40 years, the company reaffirmed...

BGI Announces the Primecal Operating System BGI has been well established as the leader in the development of electronic, primary element, air flow calibrators for air pollution type air samplers. A great deal of this position has been earned because we furnish our clients with unparalled support in...

High Flow Respirable - Thoracic Cyclones GK2.69 Cyclone Performance Curve Downloads Download the latest version of the instruction manual. Click here and then click on manual # 19. Download an Excel Sepreadsheet for Q vs D50 calculations: Applications The GK2.69 Cyclone was originally developed as d...

Links Non-Commercial Health and Safety Laboratory (UK) National Institute for Occupational Safety and Health (NIOSH) U.S. Environmental Protection Agency PM2.5 Objectives and History (EPA Region 4) Quality Assurance Guidance Document 2.12 -- Monitoring PM2.5 in Ambient Air Using Designated Reference...

Sonic Deagglomeration One of the most effective methods for deagglomerating aerosol particles is to pass them through a sonic nozzle as is done in the outlet Venturi of the Wright Dust Feeder. Proof of this effect is often desired and we present herewith an early report on this topic prepared at the...