I've worked with SmogBuster Inc. on a couple of projects. Right now, SmogBuster is providing ventilation services for our work with Lorne Hill Mechanical. They always do good work for us. They come in early to find out what our requirements are and then they execute the plan. We've never had any issues with having enough ventilation. If something breaks down, SmogBuster Inc. gets it repaired right away. I've been happy with their services and will continue to rely on them for ventilation issues.