Ruskin Air & Sound Control named the representative firms with the highest sales volume of Ruskin products during 2011.

The top 10 firms are: ADW Corp. in Dallas; Air Commodities Inc. in Seattle; Air Product Equipment Co. in Chicago; H&B Products in Washington, D.C.; Haldeman Inc. of Los Angeles; Hoffman & Hoffman Inc. in Greensboro, N.C.; Long Building Environments in Englewood, Colo.; Mussun Sales Inc. in Cleveland; Norman S. Wright Mechanical Equipment Corp. in Brisbane, Calif.; and Tom Barrow Co. in Atlanta.

“It is always difficult to determine representative firms deserving of special recognition because we believe all our representatives are the best in the industry,” said Tom Edwards, president of Ruskin. “These 10 firms were selected strictly based on their sales volume. All of these 10 firms are to be congratulated on their strong performance.”