A Strategic Partnership with a Singular Goal of Delivering Clean, Emissions-Free Air

State-of-the-Art sustainable solutions that combine industrial-scale odor control with air filtration and purification technology for the removal of airborne viruses – including COVID-19 – pathogens and dust particles.

Thanks to the strategic partnership with Dutch-based VFA Solutions, Byers Scientific has brought patented next-generation clean air technology to North America.

ASPRA Equipment
Plus Sign Environmental Monitoring

VFA’s patented ASPRA® Electrostatic Precipitation and Filtration (ESP&F) technology is now integrated into various Byers’ products, including the MT-Series of molecular filtration systems.

With scalability from 2,000 to 6,000 CFM, the MT-Series of molecular filtration systems with ASPRA® technology purifies the air, thereby improving Indoor Air Quality (IAQ) and supporting workplace safety compliance, while proactively controlling odors before they become a nuisance.

A significant advantage of incorporating ASPRA® into existing HVAC and other air handling systems is that there is virtually no infrastructure re-design necessary due to ESP&F’s inherent adaptability and minimal static pressure drop.






All aerosols (particles and pathogens) in the airflow are electrically charged and captured on a static medium in the system

(Fiberglass) Filters for the capture of fine particles in the airflow

Pathogens are exposed to UV-light (electromagnetic radiation) for deactivation

Removes aerosols


Captures viruses and bacteria


Captures Particulate Matter


Particle size range All Limited Can’t remove Particulate Matter
Deactivates viruses 


Effect on gases/VOC



Ozone safe UV-type dependent
Energy consumption Low High High
Pressure drop Low High Low
Conditions for optimal operation No additional measures Pre-filtration with other filters Correct UV-doses (adequate exposure time and intensity)

Let’s clear the air on some misused definitions.

  • Officially defined by the U.S. Dept. of Energy, HEPA is an acronym to describe the standard measurement of efficiency.  Keep in mind. HEPA is not a filter, despite common misconceptions in the marketplace.
  • A filter that meets the HEPA standard generally uses a mat of dense fiberglass to trap particles moving through it. In order to meet the HEPA specification, an air filter must trap 99.97 percent of all particles that are 0.3 microns in diameter.
  • As defined by ASHRAE, the standard-bearer for advancing human well-being through sustainable technology for the built environment, MERV is a rating system that signify an air filter’s effectiveness at decreasing airborne particles and contaminants.
  • According to the EPA, MERV stands for Minimum Efficiency Reporting Values and it reports a filter’s ability to capture larger particles between 0.3 and 10 microns (µm).

Why ASPRA® Is Better:

Exceeding HEPA Standards – Without Using a “HEPA-Style” Filter

VFA Solutions’ patented ASPRA® air purification technology is a highly efficient system that achieves up to E12-H13/HEPA classification (according to NEN-EN 1822 and DIN EN ISO 29463-5:2019 standards) without using a traditional HEPA-style filter.

  • Purifies for particulate matter size 0.03-0.30µm
  • Equivalent to 30 Nanometers
  • Botrytis and Powdery Mildew: 10µm
  • Reduced Air Flow: 175m3/h to 300 m3/h
  • Greater than 99.8% Removal Efficiency

ASPRA® is more cost-effective, creates less waste, and delivers substantial energy savings when compared to conventional air filters.

Particulate matter

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How ASPRA® Works:

  • Unhealthy air is pulled into the device

  • The particles (viruses, bacteria, fungi, particulate matter, pollen, etc.) in the air are electrically charged as they pass through an electrostatic field

  • Biological particles, such as viruses, are deactivated directly in the device

  • The particles, pathogen residues and aerosols are captured on a proprietary collector (particle filter) inside the device

  • Clean, purified air leaves the device

How ASPRA Works

“Electrostatic filtration is the future.”


ASPRA® removes the widest-range of air-borne contaminants without needing to use conventional textile filters or other expensive filters:

  • Dust
  • Particulate matter (PM10, PM2.5, PM1)
  • Ultrafine particulate matter (PM0.1, submicron and nano-particles)
  • Microbiological contaminations (viruses, bacteria, fungi, spores and pollen)
  • VOCs (volatile organic compounds)
Dust Particles

Fine Dust

Aspra removes coronavirus and viruses


Particulate Matter

Particulate Matter

Aspra removes mold and fungi


Aspra removes bacteria




Key Benefits

Healthy Environment

Healthy Environment

Greater than 99.8% removal efficiency of:

  • Indoor airborne Particulate Matter (PM)
  • Fine particles and Ultra-Fine Particles (UFP’s)
  • Allergens, pathogens, microbes
Effective Filtration

Effective Filtration

  • Certified tests EU-class 10-11
  • Expandable efficiency to EU 12-13, comparable to HEPA
  • No byproducts or free ions
  • Kills/deactivates bacteria and viruses
Low maintenance costs

Low Maintenance Costs

  • No UV bulbs to break and/or replace
  • Superior energy efficiency
  • No need for expensive HEPA filter replacement
Easy integration

Flexible Deployment

  • Seamless integration into existing HVAC
  • Stand-alone Non-HVAC models available
  • Low-impact space requirement

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Ready to effectively tackle odor and improve Indoor Air Quality?

Listen to this exclusive podcast interview with Marc Byers, Founder and President of Byers Scientific, and Eliane Khoury, Founder and CEO of VFA Solutions, who discuss how their combined solutions tackle problematic odors – while also purifying the air with the most sustainable technology on the market today.

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