Q-duct has been widely used for nearly a quarter century with an excellent record of safety. Q-duct has been submitted to both Underwriters Laboratories, Inc. and the United States Department of Agriculture for product information for comment or classification. UNDERWRITERS LABORATORIES,INC.

The following conclusions represent the judgement of Underwriters Laboratories, Inc. based upon the results of the examination and tests presented in this Report.

NFPA90A-1993, "Installation of Air Conditioning and Ventilation Systems" requires air outlets to be constructed of non-combustible material or material that has a flame spread and Smoke Developed ratings less that or equal to 25 and 50 respectively.

The products covered by this Report are judged to eligible for classification and Follow-Up Service based upon the test results obtained. The manufacturer is authorized to use the Laboratories' Classification Marking as shown below on such products which comply with the Follow-Up Procedure and any other those products which properly bear the Laboratories' Classification Marking are considered as Classified by Underwriters Laboratories, Inc. CLASSIFICATION MARKINGS:
Underwriters Laboratories Inc.
Classified
Air Distribution Device
In Accordance With Flammability Requirements
Of NAPA 90A-1993

United States
Department Of
Agriculture

"Our letter to you dated February 10, 1995 indicates that "Q-duct" are acceptable for use in all federally inspected Meat and Poultry plants and will enable you to sell to any of these plants in the country."

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