2. Low Energy Air Filters © CAMFIL FARR 11-10-24 2010 global sales £430 million 24 Production Plants, 4 R&D Centres 3400 employees Production Facility ● Sales Office ● Agent ● Head Office ●

3. Trends in population Energy demand Energy use Source : House of Commons and BP energy report OECD : Organisation for Economic Cooperation and Development (12+14 countries) The tonne of oil equivalent ( toe ) is a unit of energy : the amount of energy released by burning one tonne of crude oil, approximately 42 GJ

5. © CAMFIL FARR 11-10-24 Energy has risen in price by 118% from 2006 to 2011 (Mike Malina - Energy Solutions) That is an average rise of about 16% per year over 5 years during a world recession. Will Energy prices rise more over the next 5 years?

6. © CAMFIL FARR 11-10-24 Guys Campus Land Securities manual monitoring confirms pressure drop reductions when upgrading to Low Energy Air Filters. Kings College – Guys site confirms reduction of pressure drop gives energy use reduction with drop in Fan kW.

7. © CAMFIL FARR 11-10-24 Life Cycle Costing analysis

8. © CAMFIL FARR 11-10-24

9. © CAMFIL FARR 11-10-24 Monitoring by manual readings give pressure drop reductions

10. © CAMFIL FARR 11-10-24 Comparison of pressure drop readings confirm reduction for Low Energy Air Filters

11. © CAMFIL FARR 11-10-24 Existing filters were measured for pressure drop 01) Ahu1 has synthetic filters

12. © CAMFIL FARR 11-10-24 Low Energy Air filters were measured for pressure drop 07) Enhanced pocket area give lower pressure drop

13. © CAMFIL FARR 11-10-24 Sustainable Air Quality with less energy Low Energy Air Filter – consistent media performance delivers sustained cleaner air with over 4 X reduction in fine dust particulates

14. © CAMFIL FARR 11-10-24 Land Securities own and manage 29 million ft2 of Commercial property. Camfil were asked by Neil Pennell Engineering Director of Land Securities to evaluate the cost saving and energy saving benefits of installing Low Energy Air Filters.

15. The Mobile Energy monitoring unit provides a comprehensive monitoring system that enables energy usage to be compared to AHU volume flow and pressure drop Easy to position on most AHU’s Independent power source New Approach for Guys – The MEMU

16. Air Handling Unit energy flow © CAMFIL FARR 11-10-24 Pre-filter Secondary-filter Intake Air Frost coil Supply Air Damper Heating coil Cooling coil FAN MOTOR Gas-filter (Carbon) Attenuator OUTSIDE INSIDE FAN Electrical Energy input via motor

18. © CAMFIL FARR 11-10-24 MEMU wireless AHU filter monitoring Reduction in filter pressure gives reduction in Fan kWh Kings College remote monitoring chart with energy reduction Typical chart showing how the KWh reduce when the filter pressure drop reduces after a filter change.

19. © CAMFIL FARR 11-10-24 Guys Campus The case studies show that Low Energy Air Filters save energy and clean air with greater efficiency. The program of remote monitoring is currently on five sites with ten more planned. Opportunity assessment surveys for energy reduction are taking place on a daily basis.