Imagine a world where the air you breathe indoors is as safe as possible, protecting you from invisible threats. That's the ambitious goal of a groundbreaking research project, funded by a $40 million federal contract, which aims to revolutionize indoor air quality and public health.
The Silent Threat in the Air
We all know the importance of fire safety in public buildings. But what if the real danger is not fire, but the unseen contaminants lurking in the air we breathe? This is the premise that sparked a collaborative research endeavor involving multiple institutions, spearheaded by Virginia Tech and the University of California, Davis.
A Smart Building Solution
The research team's mission is to develop a smart building system that can monitor and enhance indoor air quality, addressing the fact that Americans spend 90% of their time indoors. This system, akin to a fire suppression system, will detect and mitigate the risks posed by airborne pathogens, including viruses, bacteria, allergens, and fungi.
"When you enter a building equipped with our system, you'll breathe cleaner, safer air," explains Linsey Marr, the project lead and University Distinguished Professor at Virginia Tech. "This will result in reduced illnesses, fewer missed workdays, and an overall improved quality of life."
The BRAVE Approach
The project, named Bioaerosol Risk Assessment interVention Engineering (BRAVE), aims to reduce respiratory illnesses by 25%. Here's how it functions:
- Biosensors, akin to smoke alarms, detect 25 types of viruses, bacteria, allergens, and fungi, including SARS-CoV-2, influenza, and black mold, in real-time.
- Computational modeling software analyzes data from biosensors and other sources to assess the risk for building occupants.
- When the risk is high, the system communicates with the building's ventilation, filtration, and UV light systems to reduce bioaerosol concentrations and illness risk.
- The system may also issue alerts and suggest behavioral changes, but most of the time, it operates silently, like a thermostat.
From Daycare Centers to Airports
The initial testing ground for BRAVE will be daycare centers, where children are particularly vulnerable to airborne pathogens. "It's a hotbed of pathogens, and we want to tackle the issue at its source," says Marr. The knowledge gained from these tests will be applicable to various communal spaces, from classrooms to airports.
By implementing BRAVE in these settings, researchers anticipate a significant reduction in illnesses, leading to better health, less absenteeism, and improved productivity. This will highlight the value of investing in indoor air quality.
A Collaborative Effort
The research team is a diverse group of experts from various institutions, including UC Davis, Washington University in St. Louis, the University of Virginia, the University of Michigan, Yale University, and more. UC Davis will lead the implementation and assessment phase, integrating biosensors, risk software, and building systems, and measuring the impact on occupant health.
The Road Ahead
The project is funded by ARPA-H's BREATHE program, which focuses on smart building systems for improved public health. The initial funding is $20 million, with potential additional funding up to $40 million over five years. The team aims to commercialize their research, making this innovative system accessible for installation in various buildings.
But here's where it gets controversial: Are we ready to trust technology to safeguard our health in such a comprehensive way? How do we ensure that these systems are accessible to all, not just those who can afford them? These are questions that will shape the future of indoor air quality and public health. What do you think? Is this the future we want, or is there a better way to tackle these invisible threats?
