The ASHRAE 241 standard, titled "Control of Infectious Bioaerosols," provides guidelines to ensure a minimum level of clean air to reduce the risk of airborne disease transmission. These guidelines are expressed in terms of Equivalent Clean Airflow (ECAi), which denotes the removal or inactivation of airborne contaminants.
For occupied spaces, the ASHRAE 241 standard specifies the necessary amount of ECAi per person, based on the type of building or space occupancy. These requirements can be achieved through various engineered solutions, including:
One effective method for air cleaning is the use of Germicidal Ultraviolet Irradiation (UVGI), which inactivates bioaerosols. To comply with ASHRAE 241, the effectiveness of UVGI systems must be validated through single-pass microbial inactivation tests, such as those specified in ASHRAE Standard 185.1 or its equivalent.
Before the introduction of ASHRAE Standards 241 and 185.1, Sanuvox Technologies' BioWall™ systems were tested according to ISO Standard 15714:2019. This standard evaluates the efficiency of in-duct UVGI systems in inactivating airborne microbes. Given the similarities between ISO Standard 15714 and ASHRAE Standard 185.1 in testing protocols, both standards confirm the effectiveness of in-duct UVGI systems, ensuring their compliance with ASHRAE 241 guidelines.
The BioWall™ system's performance, as validated by ISO 15714 test results, demonstrates its capability to help meet the ASHRAE 241 requirements. By using Sanuvox Technologies systems, you can ensure that your air handling solutions effectively control infectious bioaerosols, providing cleaner, safer indoor environments.
For detailed test results of the BioWall™, click HERE
