Does anyone have any idea how long before a MERV8 filter needs to be replaced? If construction is going longer than three months while using the filters - how can you tell if they need to be replaced?
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
May 7, 2010 - 3:39 pm
I think this is up to the filter manufacturer and is given in their specs.
Rob Watson
CEOECON Group
170 thumbs up
May 7, 2010 - 5:14 pm
It mostly has to do with the dust-holding capacity of the filter and how dusty the air is. Generally, when your pressure drop gets above 1.5 inches you need to change your filter. If there's a lot of plastering and sanding going on, then you might need to change the filter in less than three months, but if you're doing a "normal" amount associated with drywall taping only, then you should not have to change the filter more than once every 3 months.
kathy zarsky
Systems DirectorHOLOS
15 thumbs up
August 19, 2013 - 12:55 pm
We used to document filter changes, but now the table doesn't request this information. In fact, if you attempt to provide a replacement schedule, the form will not compute and hence you can't earn the credit. Is this the experience of others? I love the streamlined documentation, but the extent of documentation expected for many credits is now a bit vague. Would love to hear if my interpretation of what's expected for filter changes is correct, i.e. list of filters and date of final replacement only.