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FAQ's Page 1
Answers to Questions About AC and Furnace Filters
What Is The Difference Between AC Filters and Furnace Filters

A furnace is an indoor unit used in most cases were there is a lot of cold weather. An AC Unit is an indoor unit used in hotter climates typically in southern states. All filters are designed to keep your unit clean and your air free of dust, dirt and debris, that passes through your HVAC system. Keeping dust particles out of your unit will improve your indoor air quality along with extending the life of your furnace or AC Unit. Higher quality filters trap smaller particles and help reduce allergens in the air. With the right filter you can improve your health, air quality and life of your HVAC system. It is very important to remember to change your filters regularly (every 4-6 weeks or as needed).

What is the Best Type of Filter Without Restricting Your Air Flow?

We recommend our Flanders Precisionaire EZ Flow Fiberglass Disposable Flat Panel filters. They can be used in both heating and air conditioning systems and come in a wide variety of sizes. We can also custom make the EZ Flow Filters to your exact size, if one of the many standard sizes won't work for you. If you are looking for a filter with minimal air flow restriction, then this is the right filter for you. They are available in 1" and 2" sizes. The EZ Flow disposable filters, are one of the most popular filters in today's market, designed for protection of AC and furnace HVAC units in residential and light commercial applications.

The EZ Flow Flat Panel filter is a standard grade AC or furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation and is strengthened by a metal retainer wall on the downstream side. For peak equipment protection and energy efficiency, these filters should be changed on a monthly basis in periods of high use.

If My Air Conditioner is Whistling and Sucking Too Hard, What Should I Do?

Depending on your situation, if your unit is located in a closet with a louvered door, make sure the door is clean so that the air can pass through the slots or you can leave the door open a little to let more air through. Also you want to make sure you change your filter on a regular basis. Never leave your 1” filter in for more than 2 months. Another way is if you have a pleated filter, do not use one with a higher Merv rating than an 8. If that still doesn't work, we suggest you purchase our Flanders EZ Flow Filter or our White Polyester AC or Furnace Filters, they work better without restricting your air flow, which keeps your electric bill down.

Are New A/C or Furnace Filters Restricting the Air Flow In Older Systems?

If you have been using a pleated filter for a long time - 2-8 years plus, with no problem, than I would say you are keeping your coil clean so stay with a pleated filter with the same Merv rating. If you have a metal or plastic electrostatic filter that you are washing, then we recommend that you change it to a pleated filter. You can never get the electrostatic filter clean enough and they restrict your air flow when they get dirty which will cause your electric bill to increase. If you are using a Hogs Hair washable filter, we do not recommend this type of filter either for the same reason, you can not get them clean enough and small particles go through the filters onto your coil. We recommend you change it to an EZ Flow or Polyester Flat Panel filter. You can find both of them
on our 1" Filters page.

Is it Necessary to Buy Filters From the Company That Installed My AC or Furnace?

It is not necessary to buy from the company that installed your ac or furnace. There are many other sources who supply compatible filters at great prices.

Why Does Your Work Stand Out From Others Who Do What You Do?

We offer FREE Shipping on all orders so you don't have to waste time, money and gas. We provide excellent customer service. We stand behind our products. We provide custom hard to find sizes on any ac or furnace filter. We cater to each customers individual needs by making sure they get the right type of filter they are looking for.

When I Call To Place An Order Or Order Online, Who Will Be Taking My Order?

You will always be talking to the owners who have your best interest at heart from the start to finish, by making sure your order is correct. Mark or Michelle, owners of AC Filters 4 Less, will be answering your call and processing your order. When you need to contact us for any reason we will go above and beyond to make sure you are a happy customer. After your order is placed, we will email you a confirmation of your order. We will also send you another email informing you that your filters have shipped and provide you with the UPS Tracking number. Thank you for allowing us to serve your Air Condition and Furnace Filter needs.

Is It Necessary To Look At Air Condition Or Furnace Filters Reviews On A Website?

Yes, It Is Always A Good Idea To Look At The Air Condition and Furnace Filters Reviews. This Is a Great Way To See The Description Of Each One Of The Filters Before You Make a Purchase. You Can Go To Our Air Conditioner Filters Reviews Page. It Will Give You Some Very Useful Information To Help You Decide Which Air Condition Or Furnace Filter That Best Suits Your Needs. We Are Concerned About The Air That You Breathe. We Want To Make Sure You Are Breathing The Cleanest Air Possible By Purchasing The Correct Air Condition Or Furnace Filters That Is Right For You And Your Family.

What is a Furnace Filter?

A furnace filter is a removable filter that is located between the air intake and the furnace motor. The purpose of this filter is to stop airborne particles and dust from entering and producing damage to your furnace. Typically manufactures use the standard Fiberglass Furnace Filters, but others use the washable furnace filters, which we do not recommend, they just let too many particles through the filter. We recommend our Flanders EZ Flow Filters. After the primary job of protecting the motors of the furnace from dust, it also will help improve the efficiency by increasing the airflow. Without using a filter, the furnace would get clogged from the dust and debris, which in turn, will make the furnace work harder and probably break down, this is the basic reasons for using furnace filters. Although, originally used to protect the motor of the furnace, furnace filters have come a long way and have been redesigned to take into consideration more environmental issues in today’s market. Furnace filters are able to improve the indoor air quality by trapping dust, dirt, debris, pollen, smoke, etc. In order to maintain your furnace system and at the same time improving your indoor air quality, we suggest you should look at a higher quality furnace filter such as our Flanders Polyester Filters. Fiberglass has been used in AC or Furnace Filters of the same type that has been protecting furnaces and central air conditioners. The filtering media is continuous filament spun glass. A resistance bonding agent provides rigidity and resistance to media compression. UL marking appears on the filter frame. These filters have been tested by Underwriter’s Laboratories Inc. and classified as UL 900 Class 2 for flammability. If this is a concern, you can choose our Flanders Polyester Filters.

I Do Not Know What Type of AC Filter or Furnace Filter To Buy?

There is a lot to consider when purchasing an AC or Furnace Filter for your home. First, how old is your HVAC system? What type of filter have you been using? If it’s a pleated accordion type filter, then stay with the same type and Merv rating. If you don’t know the Merv rating, then purchase a Merv 8 pleated filter. The brand of filter doesn’t matter. There is a good chance that the evaporator coil in your AC or Furnace system is still clean. To keep the coil staying that way, do not use a lesser quality filter than suggested. If your AC or Furnace system is 6-8 years or older, you need to find out what type of filter the previous owner/tenant has been using. It is best to stay with the same comparable filter with what has been used in the past. You need to be careful not to put a pleated or high Merv rated pleated filter in an older unit. If you had an electronic air cleaner, or a washable electrostatic filter you can replace it with a Merv 8-13 pleated filter which is best. For more technical information about choosing the correct type of filter for you and your family, you can always call Mark Platt, owner of AC Filters 4 Less, at 954-588-7774 and he will be glad to help you choose the correct filter for your needs. He has been in the field for over 35 years and will always have your best interest at heart.

How Often Should Your Disposable Filters Need to be Changed?

You may have heard different opinions about how often you should change your AC or Furnace filters. Some experts will say that a 1" disposable filter should be replaced every month, while others say every 3 months. We recommend that you change your filters every 4-6 weeks or as needed, depending on your situation. If you have a lot of dust, dirt and debris or pets or allergies we highly recommend that you should change your filters every month. Larger size filters should be changed between 4-6 months.

Which Direction Do I Install My Filter?

Usually there are arrows on the frame of the filter that indicates which direction the filter should go. This arrow points in the direction the air is flowing through the return. The arrow should point in the direction of the air flow.

How is a Filter Efficiency Measured?

Filters are measure by a MERV rating. Minimum Efficiency Reporting Value, or MERV for short, is a filter rating system devised by the American Society of Heating, Refrigeration and Air conditioning Engineers (ASHRAE) to standardize and simplify filter efficiency ratings for the public. The higher the MERV rating, the higher the efficiency of the filter. Simply stated, a MERV 8 filter will remove smaller particles from the air than a MERV 3 filter.

If Your AC Filter or Furnace Filter Is Not Changed Could It Cause Damage?

Changing the filter in your home is one of the least expensive things you can do to maintain your HVAC system. After months of furnace filter neglect serious things can possibly happen. Your furnace may simply break down and you will need to find replacement parts. If your heat exchanger becomes warped or cracked from the heat build up within your furnace, noxious carbon monoxide fumes may leak into your home, not only making you sick but also potentially killing you and your entire family. Can you imagine all of this, simply because you could not be bothered to maintain your furnace filter? Faulty furnaces have also been known to cause fires, all because the furnace filter wasn't clean, and air couldn't circulate properly through the furnace and throughout your home. Clean up after a fire is incredibly expensive, and there is no telling what damage you made in the process. You can save yourself a lot of stress, a lot of health problems and a whole lot of financial burden simply by keeping your AC or furnace filters clean.

What If My AC or Furnace Stops Working?

If you don't know the last time you changed your AC filter or Furnace filter, then there is a good chance your unit will be frozen. The best thing to do, in this situation, is to turn your thermostat to fan, in the on position - not auto, and make sure the cool or heat is set in the off position. Leave your AC or Furnace off for about 2-1/2 - 3 Hours. Make sure you put some towels under your unit to absorb the excess water. Then replace your AC filter or Furnace filter and turn your unit back on to your desired temperature. If your unit continues to leak, or not cool or heat, we recommend you call a licensed professional.

What is the Difference in Types of Filters?

The first thing you need to know is the condition of your AC unit or Furnace. If your coil is already dirty, you should buy a low MERV rating filter to give you more air flow, such as our EZ Flow filters. If your AC or Furnace is less than 3-4 years old, or you permanent frame and media filter pads. If you use a washable filter, in most cases, it never gets dirty because the dirt and debris can pass right through the filter, which causes your coil to get dirty or even clogged. When you wash this filter and if you put it back in your unit wet, it will produce moisture which can cause other problems. We do not recommend washable filters.

How do I find my A/C Filters or Furnace Filter Dimensions?

Every brand of filters has a different exact size. Most A/C filters and furnace filters have two sizes: Standard and Actual. If your A/C filter or furnace filter actually measures 15-½ x 19-½ x ¾ then the standard size would be 16x20x1. When determining the size of your a/c filter or furnace filter, it is best to measure your existing filter. You do not want your a/c filter or furnace filter to fit too tight, having to force it into place could damage the filter. If the filter is too small, it can get sucked up into the return and will not filter the air properly.

Can I Wash or Vacuum My AC or Furnace Filter?

Many people try to wash or vacuum their furnace filters to extend the life. Washing your furnace filter is generally a bad idea. Many filtering materials do not hold up well when wet. Washing your furnace filter significantly increases the risk for mold or microbiological growth on the filter itself (which will release those mold spores into the air that is circulating throughout your home). Also, you can never get the filter clean enough, which puts a strain on your unit and restricts your air flow so your furnace has to run a lot longer to reach the desired temperature.

Vacuuming your furnace filter is a healthier alternative to washing your furnace filter, but is still not recommended. Although you may slightly prolong the life of your furnace filter, you will probably make a mess doing it, and a vacuumed filter will release a lot of dust and particles into the ductwork when you first re-install it. Additionally, most furnace filters are made from a delicate filtering material and are prone to ripping or tearing, which will render the filter useless.

Why Does My Air Conditioner or Furnace Unit Keep Running and Never Cool Properly?

One reason is by having a dirty filter it can restrict your air flow that comes out of your vents. When you have a new filter in your AC or furnace unit it will give you the air flow you need. You always want to change your AC filter or furnace filter on a regular basis which can save you money on your electric bill. It will also ensure good health. Electrostatic filters will remove smaller particles of dust and pollen than most disposable filters, but they need to be washed and air dried on a monthly basis. They tend to restrict the air flow which slows the air circulation in your home. This will cause your AC or furnace to run longer to reach its desired temperature. This is not a filter that we would recommend. It is always best to have the air in your home circulating and filtering the air so you get the cleanest, dust free air for you and your family. With a good disposable filter it will ensure good air circulation so your HVAC system does not have to work so hard to reach its desired temperature. This is one of the best ways to save you money on your electric bill.