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Understanding ASHRAE Standard 241 Control of Infectious Aerosols – Background, Overview, and Key Requirements

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Course Length: 3 hours

ASHRAE Standard 241 sets requirements for reducing the risk of airborne disease transmission indoors. This course provides background on airborne transmission and airborne infection risk mitigation and gives a comprehensive introduction to Standard 241. Key definitions and requirements for compliance, including equivalent clean airflow rates and air cleaner effectiveness and safety testing, are discussed in detail, and illustrated with examples. Assessment, planning, and operation and maintenance are summarized. Application of Standard 241 is covered by the companion course Is Your Building Ready? Applying ASHRAE Standard 241 Control of Infectious Aerosols – Facility Assessment, Planning, and Implementation.

Recommended References

ASHRAE Standard 241-2023, Control of Infectious Aerosols

Course Instructor

William Bahnfleth, Ph.D., P.E., Fellow/Presidential Member ASHRAE

Marwa Zaatari, Ph.D., Member ASHRAE

How Can I Register for This Course?


Additional Information

All courses and webinars are available for Chapter and In-Company Programs. They may be periodically scheduled for the Winter and/or Annual Conference Education Programs, as well as the Online Courses Series.

Chapters or Companies: Contact Karen Murray, Manager of Professional Development (kmurray@ashrae.org or 678-539-1146), to schedule an ALI seminar, course, or webinar at your organization or event.

Availability: Check the various offerings listed under Professional Development > All Instructor-Led Training to see if this course is being offered at an upcoming event or as a webinar.