Share
Related Topics
Tagged As
A method of testing very low-efficiency air filters.
We do not strictly control Google ad content. If you believe any Google ad is inappropriate, please email us directly here.
Above definition Copyright © The Home Ventilating Institute. Some content originally appeared in John Bower's book, Understanding Ventilation, published in 1995 by The Healthy House Institute.
From HHI:
Since this test only measures large and heavy particles by weight, it offers little indication of how well a filter will do at capturing smaller particles most likely to impact health. Thus, filters boasting high percentages in weight-arrestance aren't really saying much. For example, a standard 1" thick furnace filter doesn’t do a very good job of capturing most common pollutants, but when tested for weight arrestance, it will be about 80% efficient.
HHI Error Correction Policy
HHI is committed to accuracy of content and correcting information that is incomplete or inaccurate. With our broad scope of coverage of healthful indoor environments, and desire to rapidly publish info to benefit the community, mistakes are inevitable. HHI has established an error correction policy to welcome corrections or enhancements to our information. Please help us improve the quality of our content by contacting allen@healthyhouseinstitute.com with corrections or suggestions for improvement. Each contact will receive a respectful reply.
The Healthy House Institute (HHI), a for-profit educational LLC, provides the information on HealthyHouseInstitute.com as a free service to the public. The intent is to disseminate accurate, verified and science-based information on creating healthy home environments.
While an effort is made to ensure the quality of the content and credibility of sources listed on this site, HHI provides no warranty - expressed or implied - and assumes no legal liability for the accuracy, completeness, or usefulness of any information, product or process disclosed on or in conjunction with the site. The views and opinions of the authors or originators expressed herein do not necessarily state or reflect those of HHI: its principals, executives, Board members, advisors or affiliates.
