The Minimum Efficiency Report Value (MERV) is a numerical value that indicates the effectiveness of an air filter in capturing particles between 0.3 and 10 microns (µm). This rating is used to compare the performance of different filters and is especially useful for those who suffer from respiratory conditions. A MERV rating of 8 to 13 is usually considered high-end for domestic or commercial use, while a rating of 1 to 6 is the lowest range. When selecting the right MERV rating for your air filter, it's important to find a balance between the capabilities of your HVAC system and the desired indoor air quality.
People with pets or allergies should pay special attention to their filter's MERV rating. It's also important to note that a higher MERV rating doesn't always mean a better filter; if the rating is too high, it can actually reduce the quality of air in your home. Pleated filters have a slightly larger initial pressure drop, but this isn't significant enough to cause any damage to your HVAC system as long as you change filters regularly. It's also important to make sure that the MERV rating of your oven filter is lower than your system's maximum.
Choosing the right MERV rating for your oven filter has a big impact on indoor air quality, your HVAC system, and most importantly, the well-being of your family. It's important to take all these factors into consideration when selecting an air filter for your home.