| The air filter in an air conditioning system keeps | | | | Electrostatic filters use filter media, which use an |
| the cooling coils and air inside the room clean and | | | | electric charge to attract the dirt particles in the |
| free from all pollutants, pet dander, ozone | | | | air. These filters may have electric charge built-in, |
| emissions and airborne particles. | | | | or else the air moving through the layers of the |
| There are many different kinds of air filters | | | | system creates electric charge. They may cost |
| available today, such as HEPA, standard, pleated, | | | | from around $20 to over $100 each. These filters |
| electrostatic and electronic filters. Of these, | | | | only need to be changed once a year. |
| standard, pleated and electrostatic filters are the | | | | Sometimes people with allergies may consider the |
| most common types of filters that are used in air | | | | usage of an electronic air cleaner in the air |
| conditioners. Generally these filters are located in | | | | conditioner, which works on the same principle as |
| walls, ceilings, furnaces, or in the air conditioner | | | | that of electrostatic filter. However, it is far more |
| itself. | | | | effective than electrostatic filter and does not |
| Standard Air Filters, having the capacity of | | | | hinder the flow of air inside the air conditioning |
| removing 10 percent of the airborne pollutants, | | | | system. Whatever type of air conditioner filter |
| are made of spun fiberglass with cardboard | | | | you use, it is advisable to check the cleanliness of |
| frames. . They should be changed once a month. | | | | the coils of the filter by a contractor at least |
| . | | | | once in a month. |
| Pleated Air Filters catch around 35% to 40% of | | | | Perhaps the most important measure that will |
| the particles in the air. Owing to their greater | | | | ensure the efficiency of an air conditioner is |
| surface area with filter material folded back and | | | | frequent replace of its filters. One should change |
| forth like a paper fan, manufacturers claim that | | | | the air conditioner's filter regularly, as clogged, |
| they can last from two to four months. The cost | | | | dirty filters block normal air flow and reduce the |
| of these filters ranges from $5 to $20 which is | | | | system's efficiency significantly by impairing the |
| slightly more than that of standard filters. | | | | coils' heat-absorbing capacity. |