Merv 8 Air Filter Meaning
As air moves through a building’s hvac system, air filters trap and collect large and small particles such as dust, allergens and microorganisms. The difference in air filters determines what types of particles are caught and removed by the air filter.
Minimum efficiency reporting value (merv) is a standard that rates the overall effectiveness of air filters.
Merv 8 air filter meaning. While merv ratings reflect a filter's ability to trap both microscopic and macroscopic particles, mpr ratings only grade a filter on its capacity to remove particles from 0.3 to 1 microns. The higher the merv rating, the smaller the pores are for air to flow through an hvac filter. Whether you get a merv 8 or a merv 11 filter depends on these 3 factors:
For reference, a typical dust particle is between.2 and 8 microns, while pollen starts at 7 microns and can get up to 70 microns in size. Leaving a dirty air filter in place or using a filter that is too restrictive may result in low air flow and possibly cause the system to malfunction. So if you’re looking for a high quality common household air filter that’s efficient with.
Below is a chart from john semmelhack showing the percentage of particles removed by size range of particle and the merv rating of the filter. The reason for using a low merv filter before a high merv filter is to manage cost. A merv 8 air filter will remove those plus dust mites and mold spores.
This will include lots of. Merv or minimum efficiency reporting value rating is essential for understanding whether to purchase a merv 16 air filter or a merv 8 air filter for the home. Another factor driving the popularity of merv 8 filters is that they are inexpensive and easily serviced.
Hepa is a type of pleated mechanical air filter. Higher value merv rating equates to finer filtration, meaning fewer dust particles and other airborne contaminants can pass through the filter. The bottom line is, the higher the merv rating, the smaller the pores are for air to flow through , causing more resistance in airflow than your system may be designed to manage.
Basically, the higher the merv rating, the higher the air filtration capabilities of a particular filter. Ashrae recommends merv 6 or higher us department of energy recommends merv 13 leed recommends merv 8 at a minimum see the chart below for filter merv descriptions: This can create more resistance in airflow than a system is designed to manage, thus making it.
With finer filtration, fewer airborne contaminates & dust particles are allowed to pass through the filter. For the majority of the applications we encounter, we typically use a low merv filter (such as a merv 8), often referred to as a prefilter, followed by a higher merv main filter (such as a merv 14). Merv rating chart standard 52.5 minimum efficiency reporting value dust spot efficiency arrestance typical controlled contaminant typical applications and limitations typical air filter/cleaner type 20 n/a n/a < 0.30 pm particle size cleanrooms >99.999% eff.
It is an acronym for high efficiency particulate air [filter] (as officially defined by the u.s. As the merv rating increases the finer the filtration becomes. Lakeair electrostatic air filters work as well as a merv 16 air filter.
What does merv 8 mean? Check out what each merv range of filters catches to find the right fit for your. If you’re on a tight budget, you may be happy with a merv 8 filter.
Merv 13 filters will also remove bacteria and virus carriers. When shopping for furnace air filters, don’t confuse merv with other rating systems that may appear on packaging (especially from big box home improvement stores). So, should i get a merv 8 or a merv 11 air filter?
These air filters are also a more affordable option for allergy sufferers than higher merv filters. This means the merv rating you should use depends on the air quality of your home or business and the needs of the people in it. Supplies merv 8,merv 11 and merv 13 air filters.
Merv means minimum efficiency reporting value (merv) and is an industry standard that measures the overall effectiveness of air filters. Merv 8 for enhanced performance merv 8: Merv 11 filters add pet dander, smoke, and smog to the list.
This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm). An ideal upgrade from standard disposable panel filters. On time air filters offers two types of merv 8 filter
In fact, anything rated merv 7 to 12 is sufficient to filter airborne contaminants for most residential systems. But for most households, a merv 7 or 8 filter might be the sweet spot between performance and cost. Merv 8 filters utilize 100% synthetic media.
Depending on the manufacturer they can last three to six. Merv 8 air filters enhance the filtration efficiency in your home or office. The maxum electrostatic is a great air purifier for your home.
They never need to be replaced. Merv 8 pleated filters are made with synthetic media. Each filter’s rating represents its lowest possible performance, meaning every merv rating answers the question, “worst case scenario, how many particles will this filter trap?” merv 8.
Merv, otherwise known as minimum efficiency reporting value, is a system used to evaluate the efficiency of an air filter based on how effective it is at catching particles of varying sizes. Merv 8 is the highest rating in the better residential category of filters. They’re less expensive than merv 11 filters, and they’re still a good air filtering option.
