What Wrong with this Picture: Really Dirty Furnace Filter

ANSWER: Very dirty furnace filter
It may be time for a little spring cleaning. The filter on this furnace it extremely dirty. Filters in HVAC units, including heat pumps, AC units, furnaces, window units, as well as larger units, are used to keep indoor air cleaner and HVAC units operating more efficiently. Keeping a clean filter in your unit can also extend the life of the unit, as it will not be working as hard. The more dirt and dust the filter collects from the air, the less dirt and dust pass through the unit and back into the indoor area. Filters should be checked every 30 days and changed every 3 months maximum to keep your unit operating at maximum efficiency.

Comments
Boy, I hope my husband knows
Boy, I hope my husband knows about all of this and checks it. I know I sure don't I feel like every article that I read on this site tells me that I need to be aware of one more thing in my home. I think it's great, I just worry about what else I'm missing. I'm sure we've already had it checked recently, but I'm still making my husband check our hvac when he gets home from work!
Tami Putnam
Furnace Filters
It is because no one told them to. It's just like changing vehicle engine oil. Some people just don't do it. Two weeks ago I saw 4 one inch thick filters installed in an opening for a four inch HEPA filter. I am amazed every day.
It is crazy to me to think
It is crazy to me to think that people don't change their furnace filter on a regular basis. I know sometimes that they seem costly, but it is much cheaper than damaging your furnace. You also need to make sure you get the correct size. I've seen people double up on furnace filters and that is bad too.
Very dirty filter, black in just 2 weeks
Anyone know?
We have a second floor heat pump in the attic, carrier brand with a slightly oversized blower because our upstairs in 64 feet long with 1600 square feet. In the past 6 months out filters have been turning black with whatever in just 2-3 weeks whereas they used to last 4-5 weeks... I went to the attic and checked all of the connections and all seem fine, I have always been good about changing the filter every 4 weeks religiously, I spoke with HVAC people and I am stumped. I am a handyman with my own business and frustrated... Our house is 18 years old and heat pump about 3-4 years old now. Ducts were cleaned10 years ago and aren't too bad... We did have our roof replaced this Summer but nothing done in the attic... I, as you see, take care of things sooner than later...
If you have some suggestions please send them my way.
Furnace Filter
I think our filter is as dirty as that
OMG I remember
importance of furnace filters
importance of furnace filters
Dirty Filters
Dirty Filters
People don't realize