News & Media

COVID-19 Aerosol Transmission Addressed by New Hampshire Start-up

Revolutionary Design Combines Visionary Insight with Practical Expertise
Date: October 29, 2020
Contact: Julia White; 603.455.2103;

BRISTOL, N.H. – A New Hampshire company has designed and developed a revolutionary patented air cleaner that can play a critical role as we try to adapt to life in the age of COVID-19.

The company—formed by airflow experts from the semiconductor clean room and data center industry—was created to address aerosol transmission of pathogens using the experience and insight of its founders based on their decades of work modeling airflows in mission-critical facilities. It’s called Air Cleaners Inc.

The new product--the Clean Air Curtain(TM)--combines HEPA filtration and Ultraviolet Germicidal Irradiation (UVGI) with an “air curtain” high velocity exhaust to create a separation in local indoor airspaces. Their approach of utilizing HEPA level filtering together with UVGI lighting in a small, portable, desktop package represents a state-of-the-art process for producing the cleanest air possible while providing many unique and significant advantages.

“We are thrilled to be one of the first recipients of these new Clean Air Curtains,” says Dr. Joan Kirschner of Plymouth General Dentistry “We have deployed several of them at our practice. It is an investment we are pleased to make on behalf of our patients and staff’s safety”. Computer simulations performed on behalf of Plymouth General Dentistry showed a 95% risk reduction in airborne pathogen transmission with the Clean Air Curtains in place.

“We have an urgent need to clean our indoor air now,” said Chris Ames, the company’s Chief Operating Officer, “and this has drawn our attention to the continuing need to remove pathogens, pollutants, and particulates from the air that we breathe and share. We like to say our technology produces the ‘cleanest air humanly possible.’ Our HEPA filters capture 99.995% of particles, and our UV kills them within seconds. The high velocity vertical plume generated from our Clean Air Curtain provides a barrier, deflects airborne pathogens up and away from the area, and ensures the critically needed circulation for eliminating areas of high pathogen concentration. No other device has ever combined these multiple benefits.”

The Clean Air Curtain is complementary to local HVAC systems, as many buildings are without whole-building HVAC systems, or have inadequate fresh air ventilation. In these cases, the best method of clearing the air of pathogens is to use portable filtration devices.

A Safer Return to Schools

As part of our effort to reduce risk for as many as possible, Air Cleaners Inc. is teaming up with AASA—the premiere national organization for school superintendents and educational leaders—to help public school districts across the nation ensure a safe return to classes.

Airborne Transmission of COVID-19

Compelling scientific evidence indicates that the primary method for COVID-19 transmission occurs via small-particle aerosols, which can linger in the air for hours. For many small businesses, the only way to address this issue is by local air filtration. As we move into the winter months, the need for filtration of indoor air is vital to suppress the transmission of indoor pathogens like COVID 19.

In August, the National Academy of Sciences held a 2-day workshop on aerosol transmission of COVID-19. Their conclusions clearly indicate the extremely small droplets released during breathing, talking, singing and shouting—referred to as aerosols— can remain in the air for hours, and are a primary vector for the infection.

About Air Cleaners Inc

Air Cleaners Inc was formed by Paul Bemis, President & CEO, and Chris Ames, Chief Operating Officer, both professionals with extensive experience in the Mission Critical Data Center Market, as well as airflow modeling in a variety of indoor environments including Semiconductor Clean Rooms, Research Laboratories, and Casinos.

Their expertise in the field of fluid dynamics to model air flow provided the unique insights that led to the development of a solution for the rapid reduction of aerosols and particulates in the air. The development team made extensive use of Computational Fluid Dynamics (CFD) simulations to build “virtual prototypes” that sped the development process and produced a solution that performed well right from the beginning. A series of simulations and webinars were conducted during this process to predict how the product will behave in various indoor environments.