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Independent Testing

We put our needlepoint bipolar ionization (NPBI®) technology to the test: Third-party testing confirms it limits the spread of viruses.

Results-driven technology

A proven process to clean the air

The air around us is filled with particles such as dust, dander, pollen, smoke, odors and even pathogens including mold, viruses and bacteria. Our patented NPBI technology cleans the air by introducing ions into the space via the airflow in your ventilation system. Our technology delivers indoor air that’s free of ozone and other harmful byproducts. Through NPBI️, GPS products improve the air by reducing airborne particulates, odors and pathogens.

Performance Validation

Third-party testing confirms: GPS gets the job done

Our results-driven technology fights pathogens and limits the spread of viruses.

Sensitivity Testing

A petri dish containing a pathogen is placed underneath a laboratory hood, then monitored to assess the pathogen’s reactivity to NPBI over time. This controlled environment allows for comparison across different types of pathogens. Sensitivity Testing is not a measure of pathogen inactivation in the air.

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Icon Sensitivity Test
PathogenTime in ChamberRate of Reduction
Test Agency
30 minutes
ATS Labs
Human Coronavirus
60 minutes
Lab Group
30 minutes
Clostridium Difficile
30 minutes

Surrogate for Norovirus; actual strain tested was Feline Calicivirus, ATCC VR-782, Strain F-9
*Human Coronavirus 229 is not SARS-CoV-2

Simulation Testing

Simulation testing measures in-air inactivation of pathogens. Counts of an airborne pathogen are taken before and after aerosolizing that pathogen into a sealed, unoccupied laboratory environmental room

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Icon simulation testing
PathogenTime in ChamberRate of Reduction
Test Agency
60 minutes
30 minutes
30 minutes
15 minutes

Specialty Testing

Unoccupied laboratory test environments are designed to evaluate NPBI performance in conditions unique to particular industries or customers and may include special circumstances such as higher-than-average ion concentrations. Review individual test results for details.

The 2020 SARS-CoV-2 specialty testing conducted by Innovative Bioanalysis is not a measure of pathogen inactivation in the air.

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Updated Specialty Test Icon
PathogenTime in ChamberRate of ReductionTest Agency
SARS-CoV-2**30 minutes99.8%
Inactivation rate measured on aluminum and other surfaces

Please note that testing the reduction rate of SARS-Cov-2 with the GPS NPBI product is an evolving process and additional testing is anticipated to be conducted in the future. While this is not a surface disinfectant, this testing demonstrates a decrease in active virus on surfaces through particle aggregation.
**Not an FDA Cleared Air Purification System

Field Testing

Measurement at actual customer locations can be compared in rooms with and without NPBI or the same room before versus after NPBI. Measurement variables and test criteria are determined by the customer. Pathogen findings occur as part of the customers’ normal course of business and are not introduced specifically for testing purposes.

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Icon Field Test
Major Medical Center6 Test Rooms vs.
6 Control Rooms
Gram negative rods reduced to 0

Isolated pathogens 64–99% less per day

Lower average CFU throughout test period
Air Travel Command CenterBefore vs. After1 month of particle reduction

0.3um – 87.2%
0.5um – 95.4%
1.0um – 95.8%

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Use this form to get the answers you want and need fast.

• Have an indoor air challenge?

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