The Minimum Efficiency Reporting Value (MERV) is a system used to evaluate the efficiency of an air filter based on its effectiveness in trapping particles of different sizes. As an expert in the field of air filtration, I can tell you that a higher MERV rating means greater resistance, which in turn means less airflow. This is important for the performance and longevity of your furnace or air controller, as well as for creating a comfortable home environment. A MERV 11 air filter has a higher efficiency rating, meaning it can capture finer particles and remove more pollutants from the air.
If you're concerned about the effects of inhaling fine air particles, then a MERV 11 air filter is a smart choice over a MERV 8 air filter. Raising only three MERV rating levels can make a big difference in air quality. However, it's important to note that a MERV 11 air filter may need to be changed more frequently than a MERV 8 air filter. If someone in your home has an allergy or respiratory problem, then you should consider a MERV 11 or even a MERV 13 air filter. MERV 8 air filters can't filter out as many fine particles as those with higher ratings, but they are still suitable for residential use.
To help you decide between a MERV 8 and MERV 11 filter, here are some key points to consider:
- A MERV 11 filter will capture more fine particles than a MERV 8 filter.
- A MERV 11 filter will need to be changed more frequently than a MERV 8 filter.
- A MERV 11 filter is recommended if someone in your home has an allergy or respiratory problem.