Needlepoint Bipolar Ionization
Improve Indoor Air Quality (IAQ)
Needlepoint bipolar ionization helps facility operators enhance the air quality in their buildings using their building’s existing air handling systems. This saves money, time, and energy while also increasing cleanliness & safety of the air the occupants breathe.
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Benefits of Needlepoint Bipolar Ionization

Particle Reduction
NPBI technology clumps particles together so even a low efficiency filter can capture them from the air.

Pathogen Control
Independent testing confirms kill rates as high as 99.9% of various pathogens and mold spores, including COVID-19.

Odor Control
Odors, volatile organic compounds, and the like are oxidized into gases already present in the air we breathe.

Energy Savings
By cleaning and recirculating indoor air, your HVAC system requires less outside air and experiences lower loads.
How Does Needlepoint Bipolar Ionization Work?
Needle Point Bi-Polar Ionization technology works to safely clean the air inside municipal, commercial, and industrial buildings by using an electronic charge to create a plasma field filled with a high concentration of + and – ions. The ions help to agglomerate fine sub-micron particles, making them filterable. The ions kill pathogens by robbing them of life-sustaining hydrogen particles.
Is Needlepoint Bipolar Ionization Effective Against COVID-19?
Bipolar ionization creates cleaner air quality but, “How do I know Needlepoint Bipolar Ionization for HVAC is effective against COVID-19?” According to conclusions/observations from a laboratory test on the effectiveness of Needlepoint Bipolar Ionization Neutralization of SARS-CoV-2 (COVID-19), it was determined that the hydrolysis via positively charged hydrogen ions binding to peplomers of the SARS-CoV-2 virus can render 99.4% of viral particles were inactivated on a stagnant surface at 30 minutes. The full study is here.
“Does bipolar ionization produce ozone?”
Many of the older bipolar ionization systems and technologies produced ozone emissions. Make sure the solution you choose is UL 2998 validated, which means that zero emissions of ozone were measured. FSG installs UL 2998 validated needlepoint bipolar ionization solutions.
To learn more about Needlepoint Bipolar Ionization and how it works, read our blog post here.
Not sure which solution is right for you?
At FSG we have a team of subject matter experts that can help guide you to the disinfection solution for your facility. We have expert teams installing ionization systems & UV disinfecting systems for school districts, commercial facilities, and more. If you’re not sure which solution is right for you, we can help.

How Do We Know it Works?
There are a number of studies that show that NPBI is very effective at cleaning air and reducing pathogens. But we wanted to test a single NPBI unit in our offices to show what happens when a tank full of dirty air meets an NPBI unit. Watch the quick video to the right and see what happened.
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(512) 886-1258