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FAQs about IEQc1.4 :

Is it true that MERV 13 filtration is no longer required for return air circulation?

Can we earn this credit by adopting a phase-out plan of our old filters and replacing them with MERV 13 filters?

Can we use pre-filtration in combination with filters that are less than MERV 13 in order to earn the credit? For example if we use carbon pre-filters combined with MERV 11 would that work?

We are working on a project outside of the U.S. What options do we have for an alternative but equivalent standard to the MERV 13 filter.

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EBOM-2009 IEQc1.4:IAQ Best Management Practices—Reduce Particulates in Air Distribution

Filter Performance

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Alexa Stone
ecoPreserve: Building Sustainability
LEEDuser Basic Member
101 thumbs up

Has anyone ever had an issue with MERV 13 filters not maintaining original quality and performance levels? Also, I cant find if this credit requires active monitoring of any sort that would capture any changes in MERV performance. Thanks!

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Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Wed, 11/02/2011 - 16:27

Jeff, have you had such issues? No, there is not an active monitoring requirement of that kind.

Fri, 03/02/2012 - 16:32

Jeff It's safe to say that in general, filters lose their quality and performance over time, regardless of their rating. And that's why this credit requires a narrative indicating the replacement interval. Hope this helps. Hannah

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