Question: How Do I Choose An Air Filter?

Can I use the wrong size air filter?

When you use the wrong size air filter, or you install it incorrectly, the filter can’t effectively prevent dust from accumulating on the system’s motors and blowers.

You’ll end up with a dirty furnace that can’t properly perform, and all of that debris could end up harming the system’s internal components..

What size air filter do I need for my house?

Keep in mind that most disposable air filters are undercut (this is an industry standard) from anywhere between ¼” to ½”. In most cases, you should be able to use the closest standard size. For example, an air filter measuring 15-3/4″ X 19-3/4″ exact, could be replaced with one that is 16″ X 20″.

How long do air filters last?

60 daysFor basic 1″–3″ air filters, manufacturers typically tell you to replace them every 30–60 days. If you suffer from light to moderate allergies, you could install a better air filter or replace them even more regularly.

Where should I place my air filter?

7 Rules Of Where To Put Air Purifier (Or Where Not To Place It)Place It Near Worst Air Pollutants (Smoke, Odor, Mold Source) … Put Air Purifier 3-5 Feet Off The Ground. … Put It In Places With Highest Airflow (Doorways, Walls, Near Window) … Don’t Place Air Purifier In A Corner (Low Indoor Airflow)More items…•

Which side of an air filter faces out?

A simpler way to figure this out is to always make the arrows face the ceiling or wall. If your filter is on the wall, the arrow should face the wall. If your filter is on the ceiling, the arrow should face the ceiling.

How do I know which air filter to buy?

Simply, you need the filter size that fits in your air return. You can typically find that size on the side of the air filter that you already have in use. This size will be the nominal size, which means it is rounded from its actual size.

What happens if you put air filter in backwards?

By installing your filter backwards, air will have a harder time flowing through the filter and your air handler will have to work harder to make up for the loss of airflow. This could lead to higher utility bills and possibly damage your furnace or air conditioner.

How often should air filters be changed?

every 90 daysAs a general rule, you’ll want to replace pleated air filters and furnace filters in your home every 90 days. The longer the filter is in place, the more dirt, dust and allergens are trapped clogging the filter and decreasing their efficiency.

Does it matter what kind of air filter I use?

Over time, a blower fan might not have the power to work well with a higher rated filter, especially if it was designed only to use a medium rated filter. That’s why it’s important to only use air filters with the MERV rating recommended by your HVAC system’s manufacturer.

What is the best air filter for home use?

HEPA filtersHEPA filters Usually packaged as a HEPA “system,” these filters are the best of the best. VOCs, bacteria, viruses… HEPA filters capture nearly everything. Technically speaking, they trap particles as small as 0.3 microns in diameter, which is ridiculously small.

What is the best AC filter for home?

Filtrete Clean Living Basic Dust Filter for Home.Nordic Pure Pleated Air Conditioner Furnace Filter for Home. … Filtrete Micro Allergen Defense Filter for Allergies. … Flanders E-Z Flow Air Filter. … Fram Fresh Breeze Cabin Air Filter. … FilterBuy Pleated Furnace AC Filter. … Duck Replacement Foam Air Conditioner Filter. … More items…•

What is the most common air filter size?

While there are no standard furnace filter sizes that will fit all models, the most common filter dimensions include:10 X 20.14 X 20.16 X 24.18 X 30.12 X 12.14 X 24.16 X 25.20 X 20.More items…•

How do I choose an air conditioner filter?

Take the length, width and depth to determine the appropriate size, and round up to the nearest inch. You may also want to consider the MERV rating on your filters. This acronym stands for Minimum Efficiency Reporting Value. For residential systems, you want to look for a rating between 7 and 13 for optimal efficiency.

What is the right way to put in an air filter?

How to Install an Air FilterRemove the plastic from the filter—don’t remove the cardboard framing.Find the airflow arrow and point it toward the AC/heating blower.Insert the filter into its slot [central unit].Insert the filter into its slot [wall unit]

Do more expensive air filters work 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.