Ideally, choose a Merv rating of 17 or higher, which is most effective in blocking particles that cause allergy symptoms.
Merv ratingsof 9-11 mean at least 90% particle resistance. If you suffer from extreme allergies, you'll want to look for a filter with at least a merv rating of nine. These filters capture particles as small as one micron.
For most residential homes, a MERV rating of 5 to 8 is appropriate. However, if you have allergies, you'll need a filter with a MERV rating of around 10 to 14 to make sure it filters out particles such as pollen, mold spores, and pet dander. An air conditioning filter with a MERV rating of 11 or higher can effectively eliminate 75% of allergens circulating throughout the home. Filters rated 17 or higher are even more effective at blocking allergens, but they also block more air and restrict airflow.
The higher the MERV rating, the better the filter will pick up microscopic particles, such as viruses, germs and fine debris. When choosing the best oven filters for allergies, you'll want to select a filter with a MERV rating between 11 and 13 for the best results. Another thing to note is that the higher the MERV rating, the higher the likelihood of an HVAC pressure drop also increases, which means less airflow. Using an air cleaner with a MERV rating of 10 to 14 will help remove fine dust and particles from the air you breathe.
Plus, a MERV-10 filter won't choke your HVAC system (as long as you change it every 3-4 months). Filters with higher MERV ratings do the best job of catching environmental triggers for asthma and allergies. MPR rates the ability of HVAC filters to capture particles in the 0.3 to 1 micron range, so it only measures smaller particles up to 10% of the particle size of the MERV system. The MERV system has values ranging from 1 to 20, and the higher number means more extensive filtration.
Filter King also offers MERV 10 carbon filters for those who want to combat odors and MERV 13 filters for those who need the highest levels of allergen protection at home. True Blue Allergen Protection Air Filter 16x25x1, MERV 11, 4-Pack True Blue makes filters for those who are prone to allergies. Rated MERV-11 (MPR 1000), they are sufficient to capture most fine particles, including pollen and pet dander. This replacement air conditioner oven filter provides MERV 11 filtration to provide a clean inflow for your HVAC unit and prevent your space from spreading allergens.
When choosing an air conditioner filter for your home, a good system to base your decision on is the MERV rating (minimum efficiency report value). For fouling, ubiquitous ragweed pollen has a size of approximately 5 microns, which would be a medium-sized particle on the MERV scale. In addition to the MERV rating, there is also a second rating called MPR that was created by the 3M company.