Which MERV filter should I use?
Better residential filters (5-8 MERV rating) will filter common household allergens such as dust, pollen, mold, and pet dander, while superior residential filters (9-12 MERV rating) will help to remove such things as cigarette smoke, which are more difficult to filter because they contain smaller particles.Click to see full answer. Accordingly, do higher MERV filters…
Better residential filters (5-8 MERV rating) will filter common household allergens such as dust, pollen, mold, and pet dander, while superior residential filters (9-12 MERV rating) will help to remove such things as cigarette smoke, which are more difficult to filter because they contain smaller particles.Click to see full answer. Accordingly, do higher MERV filters restrict airflow?Because high MERV filters are designed to catch large and small particles and therefore will get dirty quickly. And since the filter is thin, the filter will quickly fill up with particles and block airflow.Also Know, is MERV 8 good enough? MERV 5–8 (good): These filters are better at catching small particles (3–10 microns) like mold spores, hair spray, dust mites and animal dander. MERV 13–16 (best): These filters are usually only found in hospitals because they can capture particles as small as 1–0.03 microns in size. Also question is, does MERV 11 restrict airflow? A decade ago, it used to be that if you had an HVAC system that used panel filters rated 6 through 9 MERV, putting in a MERV 11 or higher filter would restrict airflow (known as filter pressure drop). In turn, this would lengthen the system’s run-time, adding to your heating and cooling costs.Are higher MERV filters better?The pores in these filters are much smaller, allowing the filter to catch more pollutants from the airstream but also adding more resistance. 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.
