A new air filter can range anywhere from 10-30 dollars. This might seem appreciate a lot whenever you have to get one every month… But, if you consider what the cooling system filter does all day every day, it is hardly any cost at all. An air filter is the first line of defense against gathering dust and dust going into the Heating and Air Conditioning machine is a absolutely awful and hard to deal with thing. The dust slows the Heating and Air Conditioning down and makes it so much harder to produce heating and cooling. If the Heating and Air Conditioning gets quickly really dirty, it will work longer, harder and eventually burn out. A Heating and Air Conditioning machine that continually overworks itself to death is absolutely hard to repair. It either will end up to be a large Heating and Air Conditioning repair or you will need to get a whole brand new system. A furnace is absolutely affected by a dirty air filter. If you let the air filter in the machine gather a ton of dust and don’t replace it, the dust flows into the plan still. The whole furnace then will burn and churn away until it quits. The furnace could just quit due to being illogically overheated, or the heat exchanger could have cracked. A cracked heat exchanger also releases carbon monoxide into the home. Also, this is a super high-priced space in order to replace on the furnace. It costs basically as much as your furnace. It only will split down if the air filter is too dirty to do its work. So either consider spending 30 dollars or a new heat exchanger is a whole peculiar story. The little air filter does not only save the Heating and Air Conditioning equipment, it also saves your internal air filter. You don’t want to breathe in that contaminated air to your lungs either. You can get sick genuinely when your air quality is polluted.