Are all air conditioner filters the same?

The short answer is, no, they’re not all the same. In fact, there are many different types of air filters available and choosing the right one can make a real difference in the lifespan of your HVAC system. You see, the higher the MERV rating, the more the filter restricts air flow.

Air filters are all the same. It’s true! All air filters are not the same! Fine dust and dirt particles collect in the furnace’s heat exchangers and cooling coils, blocking air flow. Home HVAC air filters are graded by their MERV rating with most home filters falling between 1 and 13 (13+ are for HEPA filters).

Likewise, are AC filters universal? Because furnace and HVAC manufacturers have different size slots for air filters, they are, unfortunately, not universal. This means you will have to find the right size air filter for your furnace as others will be too small or large to effectively clean the air stream of harmful particles.

In this regard, what is the best type of AC filter?

Fiberglass filters are the basic flat filter for an air conditioner. They are the least expensive and least effective at trapping particles. Pleated filters offer a greater surface area than a flat fiberglass filter.

What are air conditioner filters?

Air conditioning filters are needed because they keep dust out of the home and provide clean, cool air. These fins collect a lot of dust and dirt.” An air conditioner’s filter is what prevents dust and grime from building up on these coils, besides improving indoor air quality as well.

What happens if I run my AC without a filter?

The biggest problem with running the AC without a filter is the dust/dirt that settles inside the AC system, restricting airflow over your evaporator coils. You see, your evaporator coils sit inside your AC air handler and are filled with cold refrigerant. This refrigerant is what actually cools the air.

Are expensive AC 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.

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.

What MERV rating do I need?

The MERV rating scale ranges from 1-16. Lower quality filters, in the 1-4 MERV range, are typically made of fiberglass. 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.

Are pleated filters bad for AC?

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. As a result, the fan has to work harder to heat and cool your home, reducing efficiency.

How often should change AC filter?

Here are averages that might help you know how often you should change the air filter at home: Vacation home or single occupant and no pets or allergies: every 6-12 months. “Average” suburban home without pets: every 90 days. Add a dog or cat: every 60 days.

What AC filter should I use?

If your AC system only accepts a one-inch thick filter, using an inexpensive MERV-5 or -6 fiberglass or pleated filters and changing them frequently is your best bet. These filters will not help much with indoor air quality but should help to protect your equipment.

How do I know what size my AC filter is?

Follow these 3 easy steps to measure your AC filter size: Step 1 – Measuring Length and Width (L x W). (If your filter is not a square, the smallest measurement goes first). Step 2 – Measure the thickness (Depth) of your filter from front to back. Step 3 – Put Your measurements together (L x W x D).

Does MERV 11 restrict airflow?

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.

Which way is airflow on AC filter?

On your new air filter, find the arrow that indicates the proper air flow direction. This tends to confuse everyone more than anything else. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling.

Are washable AC filters good?

Washable vs. Disposable air filters are more effective at trapping small particles. Washable air filters are typically only good at protecting from large particles like dust. They do not effectively filter out pet dander, bacteria, viruses or smoke, especially when they’re not meticulously maintained.

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.

How do you install AC filter airflow?

Position the airflow arrow so that it points in the direction the air is flowing. In addition to clean air, filters also protect your HVAC system from debris and dirt buildup. The airflow arrow should point towards the furnace/blower motor to collect harmful particles before it reaches the furnace’s equipment.

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.