Industrial Ventilation for Foundries, Paper, Silica and More IVI, Inc. traces its roots to foundries, the industry that delivers the ultimate test for effective industrial ventilation design. The IVI design and engineering team built its compliance muscles by finding ways to extract harsh foundry silica dust and hazardous air pollutants (HAPs). We took what we knew and used that experience to develop air quality solutions for a wide range of industries. A Dust Collector Manufacturer with Metal Fabrication Expertise. (less)