“The biggest mistake we see is the use of a high-density 1-inch air filter — 3M Filtrete is the most prevalent,” Knight said. “These types of filters restrict too much airflow back to the furnace in most applications, which results in more frequent repairs, shorter equipment life, and reduced performance.
Because high MERV filters are designed to catch large and small particles and therefore will get dirty quickly. And since the filter is thin, the filter will quickly fill up with particles and block airflow.
how often should I change my Filtrete Air Filter? For maximum effectiveness, we recommend you change filters at least every three months. However, the life of a filter can depend on the individual conditions in your home.
Also to know, does air filters restrict airflow?
Because they restrict airflow to your HVAC system. Pleated, high-MERV filters definitely capture a lot of pollutants, but they also restrict the movement of air into your blower or furnace. These cover all the air filtration basics – dust and pollen removal, for example – without restricting airflow.
Which air filter is best for the home?
So here is my list of The 10 Best Furnace Filters.
- AIRx Health 1″ MERV 13 Furnace Filters.
- Honeywell FC100A1037 Ultra Efficiency 4″ Furnace Filters.
- Nordic Pure 4″ Furnace Filters.
- FilterBuy 1″ Furnace Filters.
- AIRx ALLERGY 1″ Furnace Filters.
- Filtrete Micro Allergen 4″ Furnace Filters.
- X6673 Lennox 4″ Furnace Filters.
Is MERV 13 too restrictive?
MERV is a good way to help judge the effectiveness of an air filter. In some cases, using an air filter that is too restrictive for your system may cause low air flow problems as well. MERV 13 is the highest MERV value safe for residential furnaces; the higher ratings are used primarily in commercial units.
Is MERV 8 good enough?
MERV 5–8 (good): These filters are better at catching small particles (3–10 microns) like mold spores, hair spray, dust mites and animal dander. MERV 13–16 (best): These filters are usually only found in hospitals because they can capture particles as small as 1–0.03 microns in size.
What MERV rating should I buy?
Most residential HVAC systems will use air filters with MERV ratings from 7-12. A higher MERV value of 5-16 would be recommended for commercial buildings. In general, filters with higher MERV ratings have smaller pores through which air can pass, while still capturing allergens.
Are MERV 11 filters too restrictive?
A decade ago, it used to be that if you had an HVAC system that used panel filters rated 6 through 9 MERV, putting in a MERV 11 or higher filter would restrict airflow (known as filter pressure drop). In turn, this would lengthen the system’s run-time, adding to your heating and cooling costs.
Are expensive filters worth it?
More expensive filters like Pleated Residential filters filter out dust mites, pollen, mold and pet dander and even bacteria and so are worth the money especially for those with severe allergies. HEPA filters filter bacteria and viruses and are worth the extra money for those with respiratory conditions like emphysema.
What Merv is too high?
For most household uses, the highest MERV rating used will be MERV 13 filters. Keep in mind that a MERV rating higher than 13 could negatively affect some HVAC systems, so it is advisable to verify that your unit can handle a higher rating before you make your purchase.
Can my furnace handle a MERV 13 filter?
MERV filters 1-4 are only good for blocking large particles from damaging your furnace. The ideal MERV filters for both air filtering and furnace efficiency are 7-13, experts say. These filters can be used without any modifications to your equipment. Your system may handle MERV 14-16 with no discernable stress.
Is MERV 7 good enough?
For most residential systems, experts suggest using an air filter with a MERV value between 7 and 12. These filters offer adequate filtration and remove common contaminants such as pollen, mold spores, dust, pet dander, and tobacco smoke.
Are pleated air filters bad?
Pleated Air Filters – Negative Aspects They tend to increase energy consumption and can skyrocket your energy bill. Pleated air filters might also require you to modify your HVAC system in order to accommodate them. Ultimately, they are typically 3 times more costly than traditional non-pleated filters.
Do AC filters make a difference?
These MERV ratings really do make a difference. Recent studies have shown that, while air filters with low MERV ratings (1-5) will still minimally protect your HVAC system, these low-efficiency filters offer no better pollutant protection than no filter at all.
Is a K&N air filter worth it?
Are K&N Air Filters Worth the Money? The stock air filter is almost never a restriction point. CRC Sensorklean will remove oil from the MAF. If you over-oil the filter, then yes, it’ll mess up your MAF sensor and even clog up your throttle.
Are cheap air filters better?
Yes, in general, the more expensive air filters are more effective, but a single person with no pets and allergies might not need as much filtration as a family of five with three pets and a child with asthma.
Are vent filters a good idea?
Most vent filters are designed to be less effective than HVAC filters overall, but strong enough to block larger debris, prevent insects from crawling in and out of vents, and make it easy to recover small items dropped into a vent. Do you, however, need a vent filter to reduce the amount of allergens in the air?
Are cheap furnace filters better?
Cheap fiberglass filters are designed to stop dust, debris and hair from gunking up the system. While pleated filters will do a better job of cleaning the air than fiberglass, there are better options to clean the air efficiently without adding stress to the system.