Providing Clean, Comfortable, and Safe IAQ Solutions Since 1947, Trion has provided quality products for the commercial, industrial, and residential markets, which are engineered specifically to provide a clean, safe, and comfortable indoor air environment. Dependable performance, superior product quality, and excellent customer service are essential to our long-term success. Trion has developed a level of technical expertise that allows us to create innovative products and cost effective solutions to serve our customers' air cleaning problems worldwide. Our products can be found in homes, offices, factories, clubs, hospitals, and sea vessels, just to name a few. Headquartered in Sanford, NC, Trion manufactures products in a dedicated 263,000 square foot facility. Also headquartered in this facility is Envirco, a recognized worldwide leader in clean air products for industries requiring ultra-clean environments. Today, Trion IAQ is a brand of Johnson Controls Inc. (JCI)'s Building Technologies & Solutions (BT&S) business unit. Along with Koch Filter, Trion IAQ and Envirco make up the Air Filtration Group at JCI. JCI is a global diversified technology and multi-industrial leader serving a wide range of customers in more than 150 countries.