Enhancing School IAQ: A Deep Dive into ASHRAE Standard 241
On August 28, 2024, SVL hosted a highly focused and insightful Coffee Break webinar that zeroed in on critical aspects of indoor air quality (IAQ) in Minnesota schools, especially in light of ASHRAE’s new Standard 241. Led by Kendall Brant, SVL’s Sales Director, and Duane Rothstein, a seasoned HVAC Sales Engineer, the session provided attendees with an in-depth understanding of how this standard impacts their facilities and outlined practical steps for moving forward.
Introduction and Overview
Kendall Brant opened the session by acknowledging the demanding schedules of the Independent School District (ISD) and Charter School facility managers in attendance, thanking them for their dedication to creating safe learning environments. He quickly introduced SVL, underscoring the company’s esteemed reputation as the largest commercial HVAC independent representative in the Upper Midwest. With nearly six decades of experience, SVL has been instrumental in the installation and commissioning of HVAC systems in schools throughout Minnesota.
Why This Coffee Break?
The impetus for this Coffee Break stemmed from SVL’s recent initiative to review the websites of every Charter School and Independent School District in Minnesota. Their findings revealed that while the majority of these schools had published IAQ policies, only a select few referenced ASHRAE’s Standard 241—a standard designed to mitigate infectious aerosols during pandemics.
Understanding the critical importance of this standard, Kendall and Duane saw the need to foster a discussion on its implications and how it could complement existing standards, such as ASHRAE 62.1. Their goal was clear: to ensure that all schools in the state are engaged in an ongoing conversation about maintaining and enhancing IAQ, particularly in the face of emerging health threats.
Understanding ASHRAE Standard 241
Duane Rothstein took the helm to delve into the specifics of ASHRAE Standard 241. He clarified that this standard is not intended to replace ASHRAE 62.1, which remains the cornerstone for outdoor air quality in buildings. Instead, Standard 241 focuses on IAQ during “pandemic mode,” offering guidelines for diluting airborne pathogens in public spaces, including schools.
Through an extensive review of over 400 school websites, Duane noted that while many schools have made significant strides in their IAQ policies, there remains a gap in alignment with Standard 241. He emphasized that this standard is meant to be used alongside existing guidelines, providing additional measures for pandemic preparedness, such as enhanced air filtration and the integration of advanced air-cleaning technologies.
Key Takeaways and Air Cleaning Technologies
One of the critical points Duane underscored was that any discussion about Standard 241 should include air-cleaning technologies. He provided a comprehensive overview of several key technologies, including MERV-rated filters, UV-C light, ionization, and photocatalytic oxidation. While these technologies offer effective solutions, Duane highlighted the importance of ensuring they meet specific testing standards to guarantee they deliver safe, pathogen-free air.
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Understanding the practical implications of these technologies is crucial. For instance, while MERV 13 filters are recommended for their higher efficiency, they also increase static pressure, which may necessitate modifications to existing HVAC systems. Similarly, ionization, while effective, needs to be properly applied within the breathing zone to maximize its benefits.
The Future of Standard 241
During the Q&A session, attendees were eager to learn whether Standard 241 would become a mandated requirement in schools. Duane explained that while the standard is gaining momentum, it is still too early to determine if it will supersede existing guidelines. However, he noted that as more design engineers and building owners begin to adopt the standard, it could become a standard practice in new construction and retrofits.
Another key point of discussion was whether other states had adopted Standard 241 for their schools. Although Duane was not aware of any widespread adoption at the time, he suggested that this could change as the standard becomes more recognized and its benefits are more widely understood.
Conclusion
The SVL Coffee Break on ASHRAE Standard 241 was an invaluable session for anyone involved in the operation and maintenance of school facilities. By shedding light on the importance of IAQ, especially in the context of pandemic preparedness, SVL provided attendees with practical insights and actionable steps to enhance their existing policies. For those interested in exploring the subject further, Duane and the SVL team remain available for continued discussions, reaffirming their commitment to supporting Minnesota schools in maintaining safe and healthy environments.
As the session drew to a close, it was clear that SVL is more than just a leader in HVAC solutions; they are a trusted partner in ensuring that schools are equipped to meet the challenges of today and tomorrow. To stay informed about future sessions, be sure to reach out to your SVL Sales Engineer.
SVL, Inc. is a Midwest equipment manufacturer’s representative providing HVAC solutions to scale for over 50 years. Striving to provide premier solutions that integrate into every project. Through humble beginnings and maintaining a small business mentality, SVL knows the value of customer relationships. Which is why they go the extra mile to exceed expectations. As you work through the design, selection, installation and operation processes, SVL will guide you every step of the way. When you work with SVL you are One Team with One Mission.