ALTERNATIVE TECHNOLOGIES 

HVAC Unit UV Light Application

  • Creates O-Zone and releases endotoxins back into classroom 
  • Increased cost (Would have to install UVC lights at every point within your ductwork)
  • Decreased air changes per hour/ not continuous filtration, would have to run your AC the entire time
  • Endotoxins back into the classroom, small particles back into the space
  • Decreased treatment time due to HVAC air flow having higher CFM, not effective for high levels of disinfection capabilities 

Portable Air Purifying Units

  • Short term solution
  • Requires a greater amount of time for full room air filtration 
  • Disinfection rates on bacterial particulates will provide much lower effectiveness <99.9%
  • Will not provide both surface level and airborne bacterial disinfection

Anti- Bacterial Disinfection Spray Applications (Electrostatic)

  • Very labor intensive and increased amount of maintenance costs and staff needed to provide adequate cleaning services or requires hiring of 3rd party sanitation firms with expensive contrasts
  • Requires continuous manual applications
  • Creates ongoing costs for purchasing of cleaning solution (refills) and additional materials
  • Short term solution; only addresses surface level bacteria without continuous disinfection
  • Can't disinfect while occupants are in the room

Bipolar Ionization

  • Ionization can emit harmful Ozone (UV Irvine case Study)
  • Ionizations validated studies fall short of accuracy and accreditation
  • Causes CO2 buildup in classrooms negatively impacting students in the room and causing potential impairment
  • Significant degradation of product effectiveness over time, creating an unreliable solution for disinfection

ALTERNATIVE TECHNOLOGY - COMPARISON CHART

Device or Solution Air Guardian  Genetic 405 Violet Spect UC-Only Sealed Box Bipolar Ions Upper Air UVC  UVC 222 Light - Direct HVAC Internal UV

Continuous air disinfection

 Y X Y Y Y Y Y

Continuous surface disinfection

 Y Y X Y X Y X

Active room air changes via ingestion

 Y X Y X Passive Only  X HVAC assisted

Distance venting at neutral pressure 

 Y X X Variable X X X

Kills airborne pathogens, with single ACH at log 2-6

 Y X X X X X X

Kills COVID-19

 Y X Y No ACH Y Y Y

Kills platonic Bacterial, Mold, Spore, Fungi

 Y

Y

SURFACE

Y

AIR

 Y Y Y Y

PM 2.5 particle log 4-6 removal

 Y X Unknown or Unproven Y X Unproven at material levels X

Destroys compounds at log 2-4 levels

 Y X X Unknown or Uproven X X Unproven at material levels

Oxidation by UV-Activated catalysis of non particles

 Y X X X X X X

No ozone or chemical compounds

 Y N/A Possible due to MOA Possible due to MOA Possible due to MOA Possible due to MOA Possible due to MOA