Question: Why is my air filter turning GREY?

Why does my air filter look burnt?

If you’ve recently changed out your air filter and noticed it was black, you’re experiencing something called “black soot deposition. Essentially, black soot deposition is just an excess build-up of soot, which is typically the result of: A gas appliance or fireplace that isn’t burning fuel properly. Scented candles.

What would cause an air filter to turn black?

Soot can quickly turn your air filters black, leaving you surprised when you remove to filter to replace it with a clean one. Soot is typically caused one of two ways: candles or gas water heaters. Black soot is a byproduct of burning candles. … Gas water heaters can also produce black soot.

Why do my air filters get dirty so fast?

When your A/C is on the thermostat fan will constantly be running causing air too run over the air filter continuously and causing it to get dirty more quickly. … You may have a leak in your air ducts – Leaky air ducts can also cause your filter to clog up and especially if it is near your AC unit.

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How dirty should a home air filter look?

One clever way to determine if the air filter is dirty is to do the “white sheet test.” This involves hanging a clean white sheet approximately 5 inches away from one of the vents for at least one hour. If the sheet turns gray, you’ve got a filthy air filter. The grayer the sheet, the dirtier the filter.

Do candles make air filters black?

If you regularly burn candles in your home, there’s a good chance this is the main reason your air filter is black, especially if you burn scented candles. You see, scented candles incorporate a lot of unsaturated oils that don’t burn “clean”.

Can a black air filter make you sick?

You get air filter black mold. As soon as you notice air filter black mold, dispose of the filters! Mold can make you and your family very ill. Symptoms of sickness from mold can include a sore throat, stuffy nose, coughing, wheezing and eye irritation.

How often are you supposed to change air filters?

Here are averages that may help you know how regularly you should get a new air filter at your residence: Vacation house or one occupant and no pets or allergies: every 6–12 months. Ordinary suburban home without pets: every 90 days. One dog or cat: every 60 days.

Why is my air filter never dirty?

A filter is designed to catch all the air that goes through your air conditioning. Because of this, it needs to fit snugly inside the holder to have a chance at catching the air. … When that happens, the filter won’t get dirty because all that air isn’t going anywhere near it.

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How do I know if my ducts are leaking?

4 Signs That Your Ducts Are Leaking

  1. Uneven heating and cooling—If you notice certain rooms or areas of your home are not as cool in the summer or warm in the winter as other areas, your ducts may be leaking. …
  2. Higher energy bill—Generally speaking, your energy costs do not drastically change year over year.

Why does the house get so dusty?

Dust accumulation in your home is a product of airflow, either because too much dirty, dust-filled air is floating around your home or because not enough air is spreading through the home, allowing dust to settle.

How do I know if my filter needs to be changed?

The most obvious sign that you need a new air filter is if the one you have is gray and dirty. Make it a point to pull the air filter out and take a look at it at least once every other month. If it looks dirty or dusty, replace it.

Can a dirty air filter make you sick?

If the filter’s dirty, everything past the filter is dirty too, including the air you breathe. This pumps your home full of dust and allergens. Speaking of allergens, they can cause a number of physical symptoms like headaches, fatigue, tightness in your chest, and a mess of cold symptoms you may not be able to shake.