This is usually good enough to do the work of an average household. However, a merv 8 filter captures less than 20% of particles smaller than 0.3 microns. Based on the characteristics mentioned above, a MERV 8 is considered superior filtration compared to air filters with a lower MERV rating. But is that enough leakage? In many cases, a MERV 8 air filter is more than adequate.
However, if you are concerned about outdoor air pollution, family members with respiratory problems, pets are in the house, then choosing a higher merv rating might be a good idea. The short answer is that it can, but it's not really a problem except in extreme circumstances. Most modern HVAC systems have no problem working with higher MERV filters, so millions of homeowners rely on them. The main risk of high-efficiency air filters comes from the fact that they are not modified for long periods of time.
If you're aware of changing your filters, you're unlikely to experience filter-related issues with your HVAC system. Please note that the MERV range 5-8 can only capture air pollutants of 3.0 microns or greater. As a result, MERV 8 filters capture medium-sized particles such as aerosols, mold and dust. For most households, this is not enough.
Harmful viruses and bacteria will continue to circulate in your home, as will smoke and other forms of air pollution. Is a MERV 8 rating enough? Yes. MERV 8 is good enough for air filtration in average residential homes. A MERV 8 filter can stop mold spores, pollen and most cleaning agents.
However, it is important to note that individual circumstances may require a filter with a higher MERV rating. Yes, the choice of the word “sinking” was intentional. It should be clear that you should not try to get down into a rocky MERV filter. Consider this answer an unequivocal “yes”.
If you or someone else in your household smokes, you need more filtration than what a MERV 8 provides. ASHRAE 52.2 describes methods and procedures for evaluating air filter performance as a function of particle size. Air filters that are merv 13 and above are recommended for those who prioritize air quality and may have to handle asthma, severe allergies and other similar circumstances. Everything you see on the list for a MERV 8 filter or lower will cover what you would find in your average household.
Most air filters have arrows marked to indicate the direction in which air is supposed to flow through them. Merv ratings quantify the ability to filter particles, and the particles in question are between 0.3 and 10 microns (source). If you're shopping in the United States, you've probably noticed that MERV 8 filters are the most common on shelves. For example, if an air filter can capture at least 20% of E1, 65% of E2, and 85% of E3 particulates, it will earn a Merv 11 rating.
From sizes to types, qualities and more, here's everything you might need to know about air filters. MERV 1 to 4: Effective in controlling larger particles such as sanding dust, spray paint dust, lint and carpet fibers. Activities such as home renovation, leaving doors open to the outside, and children playing around the house can accelerate the accumulation of dust and particles in the air filter. Due to the nature of fiberglass, these filters will not be pleated like the rest of the options on this list.
However, this is not accurate and is the reason why millions of homeowners use high-efficiency filters without worrying. Technology for HVAC units has progressed since then, and most modern units in recent years should be capable of at least one MERV 8 filter. .