MERV 8 air filters are a popular choice for many homes and businesses due to their affordability and ability to provide higher-than-average air filtration. But are they really the best option for you? Before you buy a Merv 8 filter, it's important to understand what they can and cannot do. Merv 8 filters are great at trapping pollen, dust, mold, and other basic air pollutants. However, if you have allergies or pets, they may not be the best choice.
Additionally, if you live in an area with high levels of smoke pollution, you should opt for a filter with a higher Merv rating. When you switch from a cheap fiberglass air filter to a Merv 8 filter, you're adding more protection against dangerous allergens that can cause allergic reactions. However, some older HVAC units may not be able to handle these filters due to insufficient air pressure. It's important to note that Merv 5-8 filters can only capture particles of 3.0 microns or larger.
This means that they are effective at trapping medium-sized particles such as aerosols, mold, and dust. But they won't be able to capture smaller particles such as smoke, viruses, and bacteria. For residential use, the standard recommendation is to choose an air filter with a Merv rating between 7 and 13. This will ensure that your filter is able to capture the smallest particles that can cause health problems. When selecting an air filter for your home or office, it's important to consider the size of the filter as well as the Merv rating.
Most air filters have arrows marked on them to indicate the direction in which air should flow through them. Additionally, activities such as renovating the house or leaving outside doors open can speed up the buildup of dust and particles in the air cleaner. For most homes and commercial buildings, filters with a MERV rating between 8 and 13 will sufficiently filter the air. However, if you have pets or family members with respiratory problems, you should opt for a higher MERV rating such as 9-12. This will help capture pet dander, smoke, and some airborne bacteria. In conclusion, Merv 8 filters are great for trapping pollen, dust mites, and hair but may not be enough for households with allergies or pets. For these households, we recommend choosing an air filter with a MERV rating between 9-12.