Built on five, going on six, generations of firefighting, MASKhaze is a family company dedicated to developing the best training tools for firefighters and emergency responders. MASKhaze is the latest product from TBRT Engineering, LLC, a product development firm located in Lake Mills, WI. The mesh of a full engineering and product development firm and over 40 years of combined firefighting experience, TBRT and MASKhaze are committed to bringing only the best products to market.