Introduction This ANSI/ASHRAE Standard 52.2 “Understanding MERV” User Guide was created by the National Air Filtration Association (NAFA), an international group of air filter distributors, manufacturers and engineers. This Guide,
Pressure Drop Considerations in Air Filtration
We’ve always known that providing good air filtration to a building had many benefits from providing a cleaner healthier environment to protecting equipment, fixtures and processes. In January ASHRAE released
Impact of high-efficiency filtration combined with high ventilation rates on particulate matter concentrations in U.S. offices
Executive summary In 2015, the National Air Filtration Association (NAFA) Foundation funded a research proposal by Associate Professor Michael Waring at Drexel University, which was to determine whether high-efficiency filters
Delta Airlines Case study
One of the busiest airports in the world, Salt Lake City is Delta Air Lines’ third largest hub, with more than 150 scheduled daily departures. Typical of any airport, are
Dealing With Schools’ Ventilation Problems
Officials at Keefe Technical School upgraded filter efficiency and found out the improvement keeps the ductwork clean while operating the heating and cooling coils at peak energy efficiency. Statistics from