On 2/4/2019 7:56 PM, Frank wrote:


I use air filters and had never heard the term MERV so looked up your
question:

https://airexpertsnj.com/knowledge/e...erv-11-filters


Prompted me to look at the filters I'm using and now see that they are
MERV 11.Â* Don't know about price difference but sometimes filter may
collapse somewhat and more expensive filter might be sturdier.

That articles puts it into simple words. Only a few pennies more for
better filtration.