When it comes to air filtration, the MERV rating system is the standard for measuring the efficiency of air filters. MERV 11 is located halfway between 8 and 13 on the scale, and is often the most popular option for residential use. It is cheaper than the MERV 13, but more efficient than the MERV 8 air filter. A MERV 11 air filter has a higher efficiency rating, meaning it can capture finer particles and remove more pollutants from the air.
So, is a MERV 11 filter too tall for your needs? Generally speaking, it is a good choice for large department stores and places that contain smoke or exhaust gases from cars. If you want to filter a large space through an effective central air conditioning system, MERV 11 filters are what you need. They are effective at trapping small particles while still allowing enough air to pass through the filter. MERV 11 filters are ideal for residential homes with filtration needs, as well as commercial buildings, nursing homes, and non-surgical hospital areas. If someone has an allergy or a respiratory problem, choosing a MERV 11 air filter or even a MERV 13 air filter can be a smart decision to purify the air without restricting airflow too much. When it comes to high-level filtration, some online sites talk about MERV 17-20 filters.
However, the EPA and ASHRAE only rate filters on the MERV scale from 1 to 16. MERV 14, 15 and 16 filters are often used in specialized applications where high-level filtration is required, such as hospital operating rooms and other environments where it is crucial to capture even the smallest particles, including bacteria and viruses. Generally speaking, anything under a MERV 13 air filter should allow for very efficient air purification in the home without affecting air flow. MERV 8 filters trap dust, lint, debris, pet hair, small bugs such as dust mites, particles from sandpaper or spray paint, and textile fibers from clothing or carpets. It is recommended to change the MERV 13 filter every 1 to 2 months, especially if the oven or air controller works a lot. Every air filter has its pros and cons, but both MERV 8 air filters and MERV 11 air filters are suitable for residential use.
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