
PSI Patents
PSI has a long history of innovation to provide added value to our customers.
| 4,850,264 |
Regulation of atmospheric conditions within a confined space |
| 4,960,041 |
Regulation of atmospheric conditions within a confined space |
| 5,289,696 |
Modular evaporative humidification device |
| 5,290,188 |
Inlet and damper system for airhouses |
| 5,290,200 |
Detection and evacuation of atmospheric pollutants from a confined work place |
|
5,376,045 |
Twin blower airhouse |
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About Professional Supply, Inc.
Tom Kiser started Professional Supply, Inc in 1979. His mission sounded simple, but the challenge was staggering.
"Change the way industrial decision makers think about HVAC and open their eyes to the gross neglect of energy
efficiency in industry".

PSI's Mission
Energy needed should be equal to or greater than energy purchased.
Over the years PSI has made signficant advancements in energy reductions. Here are some results from one of our largest customers:
• Energy reduction of 3.2 million MMBTU's
• 257,000 tons of CO2 emissions eliminated
• 124 tons of NO2 emissions eliminated
• Significant energy maintenance savings
• Improved plant comfort, leading to improved productivity
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