For a more speedy response, contact the brand directly or their local Representative or Distributor. Such contact information can be found on any given ASC brand website.


Should you require additional assistance locating your nearest Representative or Distributor, feel free to contact us.

ASC is home to several leading brands of air distribution and indoor air quality products.

About Trion Indoor Air Quality (IAQ)

Visit the Trion Website -
Visit the Envirco Website -
Visit the Herrmidifier Website -

Since 1947, Trion has provided quality products for the commercial, industrial, residential, and military markets, 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 customer's air cleaning problems worldwide. Our products can be found in homes, offices, factories, pubs, clubs, hospitals, sea vessels and more. Headquartered in Sanford, North Carolina, Trion manufactures products in a dedicated 263,000 square foot facility. Trion UK's European, Middle and Far East operations are based in Winnall Close, Winchester in the United Kingdom. Trion Deutsehland GmbH was formed in 1984 and is responsible for Central and Eastern Europe. Our goal is to provide environmentally sound solutions for all our customers.

Today, the Trion Indoor Air Quality Group, which includes Trion, Herrmidifier, and Envirco brands, are part of Air System Components, Inc.