When it comes to air quality, a higher Merv rating is often seen as the most effective option. But, it's important to remember that this increased resistance can lead to less airflow. This is why it's important to research HVAC systems and their airflow capabilities before making a decision. It's also important to note that higher doesn't always mean better for homeowners.
MERV ratings greater than 16 are typically used in specialized commercial environments, such as hospitals. Using an air filter with a MERV rating that is too high can be just as bad as using one that is too low. The thickness of the filter material can restrict airflow, leading to decreased comfort, increased energy use, and accelerated wear and tear on HVAC components. When it comes to particle size efficiency, filters with higher MERV ratings capture higher percentages of particles, as well as smaller particles.
It's important to note that when buying oven air filters, you should not confuse MERV with other rating systems that may appear on packaging. Both MERV 8 air filters and MERV 11 air filters are suitable for residential use. However, if you're looking for peace of mind, then a higher MERV rating might be a good idea. This is especially true if you're concerned about outdoor air pollution, have family members with respiratory problems, or have pets in the house.
When it comes to air filters, each one has its advantages and disadvantages. But, if your home's HVAC system is unable to handle MERV 13, then opt for the next highest possible rating. Filter technology has come a long way over the years and MERV ratings are designed to help us determine the most effective and efficient air filter options for heating and cooling systems and more. MERV 5 — MERV 8 filters provide good filtration and remove most pollen, mold spores and dust mites. A MERV 8 carbon filter will provide more than enough filtering of dust and allergens and will filter dozens of toxic gases that will pass directly through a MERV 13 filter. Finally, it's important to remember that when using a high MERV filter, you should replace dirty filters often enough — which can be a week or two depending on the MERV rating, the effective area of the filter, and the amount of particles that enter your home.