Modular and Scalable Disinfecting Filtration System for Improved Indoor Air Quality


Environment, Clean Air & Water - Sanitisation
Environment, Clean Air & Water - Filter Membrane & Absorption Material
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United States


COVID-19 pandemic highlighted the need for a healthier and safer indoor environment. This includes better filtration to remove aerosol-size ultrafine particles, more frequent air exchanges, and the need for air disinfection. High-efficiency filters, recommended to improve indoor air quality (IAQ), come with higher-pressure drop, leading to an increase in power consumption and reduce the efforts to make buildings more energy-efficient. Bringing more outdoor air increases the load on the cooling system, resulting in higher energy use by HVAC.

This technology addresses the limitations of existing air cleaning methods by enabling the highest filtration efficiency on the system level (in the range of 98.00-99.99% @ 0.3μm) at the pressure drop equivalent to a MERV 8 filter (0.27”). Such a small pressure drop helps reduce energy consumption required for air filtration by 50-70%, compared to commonly accepted MERV 13-15 and HEPA-rated filters. A constant high-energy field creates a self-contained, highly ionized state in the filter that aggregates and effectively capture ultrafine particles (down to 0.007μm). The same high-energy field deactivates microorganisms, including viruses, and prevents them from growing inside the filter.

The technology owner is seeking partnerships with Singapore-based companies to jointly pilot this filtration method in operational settings to verify the system’s performance in the tropical environment and collect data related to air quality, energy-saving and life cycle costs.

The technology owner is also keen to work with partners seeking to develop and customize their filtration system for specific use cases (e.g. second-hand smoke filtration, creating micro-environments, real-time reporting, etc.)


The features and specifications of the electrically enhanced filtration technology are as follows:

  • Modular, stackable design for scalability
  • Suitable for new and retrofitting of existing air handling units. Can be installed in duct run or supply clean air without a ducted return
  • Filtration: 98.00-99.99% system-level efficiency @ 0.3µm. Effective in capturing ultra-fine particles, down to 0.007μm
  • The initial pressure drop: 0.27”
  • Patented V-Bank filter with large surface area and high dust loading capacity
  • Power consumption: 18W per 2000CFM (3400 m3/h) module for inline systems and 99W for an FFU @ 650 CFM (1103 m3/h)
  • Constant high-energy field to cluster ultrafine particles and deactivate micro-organisms
  • Filter replacement every 12-24 months (vs. 3-6 months for MERV filters)
  • Meets or exceeds ASHRAE 52.2-2017, EN1822, and Intertek Zero Ozone standards
  • Optional features: Pressure drop sensors
  • SGBC product certification is in progress


A complete suite of portable and engineered solutions for the built environment. The list potential applications include (but are not limited to):

  • Office buildings
  • Hospitals
  • Cleanrooms
  • Hotels
  • Education (schools, universities)
  • Food and beverage industries (e.g. restaurants, bars, food manufacturing)
  • Industrial buildings (e.g. factories, warehouses)
  • Residential buildings

Market Trends & Opportunities

The global air filters market is projected to grow from $14.68 billion in 2022 to $23.83 billion by 2029, exhibiting a CAGR of 7.2% in forecast period, 2022-2029.

Unique Value Proposition

  • Medical-grade indoor air quality on a building, floor or individual room levels at the lowest energy penalty
  • Enhancement of the existing HVAC systems; minimum system downtime, low capital costs, fast payback
  • Up to 4x Opex saving compared to systems with filters of MERV 14 grade
  • Effective deactivation of microorganisms including viruses
  • Eliminates the need for ducted UVGI solutions
  • 50-70% air filtration energy saving when benchmarked against MERV 13-15 filters
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