1. 1 / UVDI July, 2006 Proprietary & Confidential Importance of Indoor Air Quality  People spend 90% of their time indoors  Studies by the EPA show that indoor pollutant levels may be 2 to 5 times higher than outdoor levels  The EPA has identified indoor air quality as one of the five most urgent environmental risks to public health today  Today’s tighter, better insulated homes can limit natural ventilation and trap airborne contaminants inside  The need is even greater for the 15 million Americans with asthma and the additional 35 million with allergies  Between 1982 and 1994, asthma rates rose 61% for adults and 72% for children  More than 95% of the US general population is concerned about IAQ at home * Source: Chelsea Group, July, 2001

2. 2 / UVDI July, 2006 Proprietary & Confidential “If a large number of schools, hospitals, office buildings and residences were modified [with UVGI]… A number of airborne respiratory diseases could be eradicated… …by interrupting the transmission cycle. Reducing the transmission rate sufficiently would…...Halt epidemics in their path.” Dr. Wladyslaw Jan Kowalski, Pennsylvania State University’s Indoor Environment Center

3. 3 / UVDI July, 2006 Proprietary & Confidential Cleaner Air… Healthier & Safer Indoor Environment Significantly reduces risk of contamination, infection & epidemic Result is less sick days, less complaints and higher productivity Cleaner Surfaces…Coils, Filters, Processing Controls microbial growth at the source Extends equipment life Lowers operating costs Why Use Ultra Violet Germicidal Irradiation (UVGI)?

4. 4 / UVDI July, 2006 Proprietary & Confidential Moving Air Streams “Kills on the Fly” Installed in the HVAC duct system – supply or return Isolation rooms, Bio-Terror, etc. Requires high output lamps “Capture & Kill” – Source Control Typically applied on HVAC coils Most cost efficient Most versatile and popular Uses normal & low output lamps Where should UVGI be used?

5. 5 / UVDI July, 2006 Proprietary & Confidential St. Michael’s Hospital reduces energy usage while improving air quality SituationProjectResults St. Michael’s Hospital in TX was looking to reduce operating expenses. Installation of UV Lighting fixtures on HVAC Coils. 8-Month Payback Annual Cooling energy savings of 92,291 KwHr Annual savings of $3,692 Almost complete elimination of labor costs to clean HVAC Coils 11% Increase in airflow Increase in Air Quality What can Altru-V TM do to help me improve patient outcomes AND decrease operating expenses?

6. 6 / UVDI July, 2006 Proprietary & Confidential Florida Hospital System saves $4,867 a year with a UV Lighting system SituationProjectResults Trial performed on 27 year old 6,000 CFM Air Handling Unit. Unit chosen due to very visible build-up of mold with the coil 50% clogged. Installation of UV Lighting fixtures on HVAC Coils. Within 3 months of installation: Static pressure decreased by 1.1 in. wg. Air velocity over the coil more than doubled. All visible evidence of mold or build-up eliminated. Annual savings of $4,867 6-Month Payback Increase in Air Quality What can Altru-V TM do to help me improve patient outcomes AND decrease operating expenses?

7. 7 / UVDI July, 2006 Proprietary & Confidential Florida Hospital System - Orlando Main Campus Additional ‘Green’ Benefit: Traditional chemical coil cleaning is now obsolete. Cleaner coils means lower operating costs too! Before… …After UV Installed Mold, Bio-Mass & Other Microbial Growth Eliminated by Controlling the Source HEPA Downstream Filtration

8. 8 / UVDI July, 2006 Proprietary & Confidential Children’s Hospital in Buffalo reduces microbial load by 6 fold in the first year SituationProjectResults Very high level of microbial counts found in infants within the neonatal intensive care unit. Safety of patients jeopardized as well as that of healthcare workers. Compared the serial bacterial and fungal cultures on HVAC system with tracheal aspirate (TA) from incubated infants. Installed UVGI lamps on Air Handling Units serving the area. After UVGI was installed the total microbial load was decreased by 6 fold over a period of 300 days. “This device significantly reduced microbial contamination in our neonatal intensive care unit, and spared our tiny patients from exposure to main infection causing organisms.”? Dr. Rita Ryan, M.D.

9. 9 / UVDI July, 2006 Proprietary & Confidential Source: Dr. C. Leach, Dr. R. Ryan UVGI On Children’s Hospital - SUNY Buffalo Neonatal Intensive Care Unit

10. 10 / UVDI July, 2006 Proprietary & Confidential Henry Mayo Hospital extends the life of their existing HVAC coils SituationProjectResults 25+ year old HVAC installation with original coil modules that had never been cleaned due to lack of access Experiencing very high utility costs for the air chiller system. Significant evidence of corrosion on the evaporator reducing life expectancy. Installation of UV Lighting fixtures on HVAC Coils utilizing track and side load access design features. Measurement of system performance before and after installation. Returned system performance to a ‘like new’ condition. Annual savings of $6,477. Payback of less than 5 months. Extended life of existing coils. Elimination of bio-film build-up on evaporator coils resulting in improved downstream air quality. What can Altru-V TM do to help me improve patient outcomes AND decrease operating expenses?

11. 11 / UVDI July, 2006 Proprietary & Confidential Installation of access doors Side of unit with access doors Installed UV light with access door off View of coils with UV installed Henry Mayo Hospital - Santa Clarita, California

12. 12 / UVDI July, 2006 Proprietary & Confidential The Queen’s Medical Center Honolulu, Hawaii SituationProjectResults The Queen’s Medical Center partnered with Hawaiian Electric Company (HECO) to create a joint project to improve air quality, protect against mold, bacteria and airborne pathogens while improving energy efficiency for the facility. Installation of UV Lighting fixtures on HVAC Coils of the main air handling units. Additional UV lights installed in the ventilation of the common areas of the Queen Emma clinic including the waiting rooms, nursing stations and in some examination and isolation rooms. Staff members and visitors notice that the air is fresher and cleaner – and without the musty odors they had prior to install 100% elimination of annual maintenance associated with cleaning and disinfecting coils 100% design efficiency on coils that had degraded below 70% of their design prior to installation of UVGI What can Altru-V TM do to help me improve patient outcomes AND decrease operating expenses?

13. 13 / UVDI July, 2006 Proprietary & Confidential Public Service Company of Oklahoma Tulsa, Oklahoma SituationProjectResults On EPA Top 10 List for worst indoor air quality in a government facility Even after significant cleaning investments, mold and odor remained a serious problem Installation of UV Lighting fixtures on HVAC Coils. Eliminated indoor air quality complaints Reduced maintenance for coil cleaning Shut Down of Additional Chillers (300 tons of cooling reduction) Saved Significant Energy Annual savings of $40k/year Payback of less than 6 months What can Altru-V TM do to help me improve indoor environmental quality AND decrease operating expenses?

14. 14 / UVDI July, 2006 Proprietary & Confidential Public Service Company of Oklahoma Tulsa, Oklahoma Additional ‘Green’ Benefit: Traditional chemical coil cleaning is now obsolete. Cleaner coils means lower operating costs too! Before… …After Mold, Bio-Mass & Other Microbial Growth Eliminated by Controlling the Source

15. 15 / UVDI July, 2006 Proprietary & Confidential Harris County Municipal Offices Houston, Texas SituationProjectResults Various complaints regarding indoor air quality including increased incidence of asthma and other breathing problems from building occupants Building maintenance already spending a great deal of money on chemical cleaning of cooling coils without any prolonged success Installed UVGI lamps on Air Handling Units serving the building Eliminated complaints regarding IAQ Eliminated need for chemical cleaning Coil pressure drop reduced 8.3% (1.2” to 1.1”) and system CFM increased 10% Chilled water delta T increased from 10.4°F to 16.5°F Savings from improved energy efficiency and reduced maintenance at over $20k/year What can Altru-V TM do to help me improve indoor environmental quality AND decrease operating expenses?

16. 16 / UVDI July, 2006 Proprietary & Confidential Coil Module Close-up – Before UV Harris County Municipal Offices Houston, Texas Coil Module Close-up – After UV Petri Dish Sample – Before UV Petri Dish Sample – After UV

17. 17 / UVDI July, 2006 Proprietary & Confidential Louisiana State University Baton Rouge, LA SituationProjectResults LSU was using chemicals and traditional pressure washing for cleaning of 30 year old Air Handling Units. Performance of units had severely deteriorated over the last couple of years. LSU was evaluating purchasing new coil modules. Installation of UV Lighting fixtures on HVAC Coils. After 30 days of UV treatment, static pressure decreased by 25% Air velocity over the coil more than doubled. All visible evidence of mold or build-up eliminated. Savings of over $15k from not purchasing new coil modules Increase in Air Quality What can Altru-V TM do to help me decrease operating expenses?

18. 18 / UVDI July, 2006 Proprietary & Confidential GSA Specification

19. 19 / UVDI July, 2006 Proprietary & Confidential GSA Specification Section Five, Sub-Section 5.4, Page 130, Paragraph title: Drains and Drain Pans. “Drains and Drain Pans. Drain pans located in supply air ducts, plenums, air-handling units, and fan coil units shall be adequately sloped and trapped to assure drainage. Drains in draw-through configurations shall have traps with a depth and height differential between inlet and outlet equal to or greater than the design static pressure. Ultraviolet light (C band) emitters shall be incorporated downstream of all cooling coils and above all drain pans to control airborne and surface microbial growth and transfer.”

20. 20 / UVDI July, 2006 Proprietary & Confidential Installation List – Select Customers