1. Ultrasonic Humidification Hi-Tech Environments Inc. 1890 Crooks Rd. Suite 500 Troy, MI 48084 248-362-3400

2. 2 Previous Humidification Method Infrared Capacity 22.1 lbs/hr Consuming 9.6 kw. (3-3300 watt Quartz Lamps) Utilizing Non-Conditioned City Water –Maintenance to Clean Pans 1.5 Man hrs. –System Utilizes a Automatic Flush System to Reduce Maintenance.

3. Infrared Unit in Operation 3

4. 4 Current Humidification System Ultrasonic Capacity 17.6 lbs/hr. Consuming 565 w Utilizing Conditioned Water –Water is Demineralized using RO and DI –There is no Labor on the Ultrasonic Unit, Just the Water Treatment.

5. 5 Ultrasonic Humidifier in Operation

6. Ultrasonic Humidifier and Controller 6

7. 7 Chart Slide Detailed Energy Saving Calculations Number of Humidifiers Watts of Each Unit Annual Hours Of Operation KWH Comsumped per year (Watts / 1000) Cost Per KWH Annual Cost of Electricity Annual Savings Previous98x9,600x3,725x3,504,480x$0.11x $ 385,493 Current89x585x3,725x193,942x$0.11x $ 21,334 $ 364,159 Free Cooling Energy Savings BTU's Not Generated KW's per BTU Cost Per KWH Annual Cost of Electricity 1,170,114,880x1,714,706$0.11$188,617.66

8. 8 Comparison of Humidifier Systems Amperage of Infrared Unit 11.7 Amperage of Ultrasonic Unit 1.5

9. 9 Infrared Maintenance Mineral Buildup in Humidifier Pan

10. Water Treatment Equipment 10

11. Points to Consider The Infrared Unit –Cost of the lamps is $94 x 3 each unit. –The water probe in the humidifier pan are gold tipped $61.00 –The units have not proven to be very reliable –The units are out of sight-out of mind. The Ultrasonic Unit –Placement in an existing facility can be difficult, due to the mist produced. –If the water treatment has any malfunction water storage can become an issue. –Since the units are in sight, the staff question operations. 11

12. Ultrasonic Clients Comerica 23 years Steelcase 22 years HFHC 17 years Howmet 15 years BCBS 22 years Orchestra Hall Selfridges ANG Siemens Automotive Nissan Research Hewlett Packard Trinity Health Care TRW Automotive Detroit Metro Airport Caraco Pharmaceutical Twin Oaks MEDQ AAA Headquarters Wacker Silicones 12