What causes AC filter to get dirty quickly?

How can I make my air filter last longer?

Make it easy on yourself with these tips:

  1. Order filters from a service that mails them to your home every 30, 60, 90 or 120 days.
  2. Stock up on a year’s supply of filters.
  3. Buy filters by the box for a lower per-filter cost.

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.

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”.

Why is my AC filter GREY?

It’s one thing to check your air filter and find it grey and clogged with dust, dirt and the usual air contaminants. … Most likely your AC filter turning black is caused by a phenomenon called “Black Soot Deposition”.

Why is my air filter turning GREY?

Clogged filters also reduce airflow to the space further complicating the air quality problem. … Take a look at the white sheet to see if it has turned gray or black, and the more dirt on that sheet, the more likely it is that your filter needs changing.

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Can a dirty air filter cause engine noise?

Strange Engine Noises

If you start to hear coughing or popping noises coming from the engine compartment, or if your vehicle vibrates excessively, it can be a symptom of a dirty air filter that is damaging a spark plug.

How often should you change air filter?

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.