This document discusses three concepts for improving indoor air quality (IAQ) in workspaces: 1. UV Solutions - Using ultraviolet (UV) lamps to kill microbes like viruses, bacteria, and fungi through DNA damage. The CDC recommends UV for destroying pathogens like tuberculosis. 2. PHI Cells - Exposing activated oxygen to a catalyst and UV light to generate "friendly oxidizers" like hydroperoxides that break down both airborne and surface microbes and VOCs. 3. Merv 13 Filters - High efficiency particulate air (HEPA) filters that remove a high percentage of airborne contaminants, used in hospitals but not recommended for homes due to restricted airflow.

1. IAQ Improvement Concepts for Workspaces

2. 1 UV Solutions
2 PHI Cells
3 Merv 13 Filter for AHUs
Contents

3. UV-SOLUTIONs
 Ultra Violet Germicidal irradiation ( UVGI ) is the
use of ultra violet energy to kill or inactivate
microbes ( Viral bacterial and Fungal Species )
 UV energy attacks the DNA of living cell,
penetrating the cell membrane, breaking the
DNA structure of the Micro – organism, inhibiting
reproduction, UV is effective is destroying
biological contaminant and odors such as mold,
bacterial and viruses.
 The center for disease control ( CDC)
recommends the methods for destroying viruses
such as tuberculosis
 UV Lamp Produces the same UV wave length the
sun produces.
 UVC ( Germicidal 254nm) and UVV ( Oxidizing
187nm) are produced quartz glass

4. UV-SOLUTIONs
This UCGI ( Ultra Violet Germicidal Irradiation )
system is installed in Air Handling Units of HVAC
Usual Problems Encountered
 Increasing Electrical Consumption
 Deteriorating Indoor Air Quality ( IAQ )
 Increase Operation and Maintenance Cost
 Improved cleanliness, Eliminated
Maintenance and cleaning of cooling coils
Helps in Following Ways
 Energy Saving
 Improved Indoor Air Quality
 Reduced Operation and Maintenece Cost
 Increase coil Life

5. UV-SOLUTIONs

6. UV-SOLUTIONs

7. PHI

8. PHI
PHI occurs by exposing activated oxygen molecules to a hydrated
catalyst containing four unique metals and a 100-380 nm UV light.
Friendly Oxidizers are:
• Hydro-Peroxides
• Hydroxides
• Super Oxide Ions
These friendly are very effective in breaking down both airborne
and surface borne microbes as well VOC’s and Odor in the
conditioned space
• Oxidizing Agent – Properties of Virucidal, Germicidal, Antiseptic,
Disinfecting & Deodorizing
• It is a naturally occurring substance
• Used in medical community for over 170 years for disinfection
purpose
• Considered as safest oxidizer
.

9. PHI

10. MERV 13 Filters
 MERV stands for Minimum Efficiency Reporting
Value. It is a measure of the efficiency of the air
filter (the amount of airborne pollutants it
removes). The MERV rating helps you determine
which air filter you should use for your home air
filter.
 In general, air filters with higher MERV ratings
remove a higher percentage of airborne
contaminants, therefore improving your indoor air
quality.
 Filters in this category are used in hospitals and
clean rooms, where airborne contaminants must be
almost completely eliminated. These are not
recommended for residential use as they restrict
airflow and can damage your heating and cooling
system.