Biofiltration technology has been an accepted form of odor and voc control in Europe for a number of years. In the past five years, a number of different industries in the US have accepted biofiltration controls as an alternative to thermal and sorptive voc control systems. These industries include the wood products industry, the flavor and fragrance industry, and a number of different solvent-using industries, such as the film processing and screen printing industries. American industry continues to search for innovative, more cost effective methods of dealing with volatile organic compound emissions. Currently, voc control is maintained using nondestructive concentration technologies, such as carbon absorption or a destructive oxidation process.