What is a MERV Rating?

The MERV rating system was initially created by  ASHRAE in 1987. The purpose of the Standard is designed to determine the following attributes of air filters: Particle removal capability Resistance to airflow Expected operating life How is an Air Cleaner’s MERV Rating Determined? Air cleaners are given MERV ratings based on the results of a series…

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ASHRAE Strives To Improve Standards with Public Review

Thirty proposed addenda, as well as actions related to several other ASHRAE standards and guidelines, are open for public review, which allows interested parties to comment on the technical guidance contained in the documents. “The public review process allows interested parties to give input into development of standards and their related addenda and guidelines,” Jim…

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AHRI Endorses DOE Decision to Adopt ASHRAE Standards

The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) applauded two recent Department of Energy (DOE) final rules that adopt ASHRAE 90.1 efficiency levels for three-phase unitary products less than 65,000 Btuh, water-source heat pumps, commercial oil-fired storage water heaters, and packaged terminal air conditioners (PTACs). “Adopting ASHRAE 90.1 efficiency levels for these products is the most…

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