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User Evaluation
Indoor Air Quality: Test accomplished by the Wisconsin Division of Public Health Indoor Air Program found the that indoor air quality improved significantly. Carbon dioxide levels were reduced from over 1000ppm to 400 unoccupied and maintained around 850ppm during occupancy. Humidity was controlled between 30 and 60% in the climate that vary from cold and dry in the winter to hot and humid in the late spring and early autumn months.
The quality of light improved significantly with the replacement of T-12 with T-8's and with better switching in the rooms.
Sound Quality: Reduction in the noise levels produced by the ventilation systems was
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