What's a disadvantage of the highest MERV rated filters?
What's a disadvantage of the highest MERV rated filters?
The higher MERV filters have higher resistance. When you add more resistance, you can get a bigger pressure drop across the filter. And that's where the problems begin. The blower in the furnace or air handler is rated for a certain amount of pressure drop.Nov 4, 2018
What happens when you add a higher MERV level filter in your HVAC system?
Wrong. While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow. ... If the MERV rating on your furnace is too high, it may force your furnace to work too hard and leave it vulnerable to damages.Sep 20, 2019
What MERV rating can my HVAC handle?
The ideal MERV filters for both air filtering and furnace efficiency are 7-13, experts say. These filters can be used without any modifications to your equipment. Your system may handle MERV 14-16 with no discernable stress.Mar 20, 2012
Does higher MERV restrict airflow?
MERV is short for “Minimum Efficiency Reporting Value”. ... While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow.Sep 20, 2019
Are MERV 13 filters worth it?
Filters within a MERV rating of 17-20 are almost never necessary in a residential home. A MERV rating of 13-16 is considered hospital level air quality, so it is unlikely your home needs any more than that.Sep 20, 2019
Will a MERV 13 filter hurt my AC?
MERV 13 air filters are the highest-rated air filters for home use. Any air filter with a rating higher than 13 will restrict air flow to the point of which could cause damage to your HVAC system, resulting in an added expense to fix it.
Is a MERV 13 filter too restrictive?
At this point, it's also important to note: MERV ratings go above 13. However, they're too restrictive for normal home HVAC systems, and thus using them can cause potentially expensive problems.
Is MERV 13 better than Merv 8?
A filter with a MERV rating of 13 catches more contaminants and could be considered “better” than a MERV 8 filter. ... A MERV 8 filter is best for New Jersey homeowners who are simply trying to keep their HVAC system healthy and clean and don't want to spend too much on a filter.Nov 7, 2017
Is MERV 12 better than MERV 10?
A MERV 9 will trap less than 50% of particles sized 1.0-3.0 microns, MERV 10 will stop up to 64%, MERV 11 will get up to 79%, and MERV 12 is capable of catching up to 89%.Dec 4, 2019
Is MERV 10 good enough?
A filter with a MERV rating of around 10 to 12 is sufficient to remove most allergy-causing particles from your home's air.Jan 1, 2020
What MERV filter stops virus?
COVID-19Common questionWhat kind of filter should I use for my home air conditioning during the pandemic?Minimum Efficiency Reporting Values, or MERV, reports a filter's ability to capture particles. Filters with MERV-13 or higher ratings can trap smaller particles, including viruses. Many home HVAC systems will have a MERV-8 filter installed as the default.Jan 12, 2021