The Immune Building System represents an air cleaning system utilizing efficient Filtration and Ultra Violet Germicidal Irradiation, custom designed for each building and installed in the buildings mechanical fan systems treating outside air and re-circulating air. Each system is an engineered system because building mechanical air handling systems can vary significantly from building to building.

IBSI will perform a survey that determines the extent of the installation required to meet fan system performance specifications. The system is seamless to the occupants in both installation and operations.

Performance between the Immune Building System and HEPA filtration is shown below with Performance curve charts (1 through 4).

Chart 1: Performance curve utilizing MERV 13 (80% filters)

Source: Modeling Immune Building Systems for Bioterrorism Defense, Wladslaw Kowalski; William Bahnfleth; and Amy Musser, Journal of Architectural Engineering ASCE, June 2003

Chart 2: Performance curve utilizing HEPA Filtration.

Source: Modeling Immune Building Systems for Bioterrorism Defense, Wladslaw Kowalski; William Bahnfleth; and Amy Musser, Journal of Architectural Engineering ASCE, June 2003

High Efficiency Particulate Air (HEPA) filters prevent most externally generated particles from entering an environment (i.e., clean room). Present technology for high efficiency air filters centers around HEPA filters that use glass fiber paper technology. However, HEPA filtration represents tremendous first costs associated with major building mechanical and electrical modifications. Currently, due to the extensive cost of installation, this technology has only been used in specialty buildings that require 99. 97% filtration. HEPA filtration will radically increase the cost of maintaining and operating the systems. Recent engineering studies have projected the doubling of electric usage attributed to these systems.

The financial impact of using a HEPA system is threefold: (1) Maintaining the HEPA system is expensive; (2) the increase in electrical cost to operate the HEPA system is projected to double; and (3) the initial capital requirement to install the system is approximately five (5) times greater than conventional systems.

The negative financial impact disqualifies the HEPA system for commercial applications.

The alternative for large scale, commercial applications is the Immune Building System which can provide:

• HEPA filtration performance.
• Cost reduction at a fraction of HEPA for both installation and maintenance.
• IBSI’s executives and professionals with a combined 100 plus years of experience.
  

Chart 3: Performance curve utilizing MERV 13 (80%) + URV 13 (UVGI) - Typical Immune Building System Performance

Source: Modeling Immune Building Systems for Bioterrorism Defense, Wladslaw Kowalski; William Bahnfleth; and Amy Musser, Journal of Architectural Engineering ASCE, June 2003

Chart 4: Air Cleaning Performance curve

Source: Modeling Immune Building Systems for Bioterrorism Defense Wladslaw Kowalski; William Bahnfleth; and Amy Musser, Journal of Architectural Engineering ASCE, June 2003

Note: The level of air cleaning for the Immune Building System with 80% efficient filtration and UVGI (13/13) approaches HEPA filtration (16/17).

The change between the Immune Building System and HEPA is a non-event!