The Ohio Air Quality Development Authority awarded $1.75 million to St. Clair Lofts in downtown Dayton, and another $1 million for an expansion project at Tomco Machining Inc. in Springboro.

The $1.75 million in bond financing will allow Lindy-Zell Dayton Lofts LLC to install new energy-efficient windows for St. Clair Lofts, located at 35 S. St. Clair St. in downtown Dayton. The original, single-pane windows will be replaced with more modern, energy-efficient windows as part of the project, which involves the development of 108 apartments and retail space in the 110-year-old building.

Further south, Tomco Machining will use the $1 million in bond financing to make energy-efficient improvements and install an on-site solar electric system for a new facility it is building. The manufacturer of precision duct-type and tubular assemblies is constructing a new 24,000-square-foot manufacturing plant at South Tech Boulevard and Industry Lane.

These projects are two of four Ohio initiatives that were awarded funding from OAQDA. Other projects were located in Cincinnati and Kenton.

In all, the state organization approved a total of $6.8 million for the businesses to purchase and install equipment that is meant to preserve air quality. Funds were approved at OAQDA’s board meeting on Tuesday.