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Furnace filters ensure that the air you breathe is clean, fresh and free of contaminants.

Originally, furnace filters were designed to protect the furnace and fans. But now with the importance of air quality, is being used with other equipment. Today it is being used in the HVAC (Heating, Ventilation and Air Conditioning) industry. Here are some other types of furnace filters.

Clean air is what everyone wants in their homes. According U.S. EPA Indoor air is 2-5 times more polluted than outdoor air. The average person inhales About 18,185 liters of air every day. With this, the person breathes 1120000000 dust particles or microns.

• fiberglass filters disposable

These filters are least efficient and cheaper units. Are designed to block dust and large particles only. This means that smaller particles are not filtered. They are used to protect the oven and placed in a cardboard frame.

About 2% can filter submicron particles. They are typically installed in the ducts of the source system.

• Tweezers "allergy" filters

There are 35 to 50% efficiency when it comes to filter large allergens like pollen or dust. They are made of material denser mesh. Are better than flat filters. Most are electrostatically charged fibers that attract smaller particles. They cost around $ 5 — $ 15 each and a duration of 3 months.

Moreover, high-standard units costs about $ 250 to $ 450. The folds give the furnace filters media more, or surface, where the particles can be captured. Thin pleated filters can filter about 11% of sub micron particles and 25% in deep folds. Some filters are sold and electrostatic pleated at the same time.

These filters produce 1 inch, 2 inches and 4-6 inches materials in depth. However, air conditioners and heaters are 1-2 inches in most cases. Usually have a 5 MERV rating.

• HEPA

Standard units of high efficiency particulate air filters are high. They are used in hospitals, research facilities and electronics labs. These sites specifically require cleaner air. They block air particles, but also blocks airflow.

About 2% can filter submicron particles. They are also used in HEPA vacuum cleaners and HEPA air filters. They are recommended for use by asthma sufferers.

They are similar in design to standard air filters folding. But it has more pleats per inch to trap particles small. They were developed by the Atomic Energy Commission during World War II. They were created to remove and capture radioactive dust particles from the air. They were designed to protect the human respiratory system.

They consist of a core filter that is folded over corrugated separators to strengthen the central. They form the air passages between the folds.

• Activated Carbon Air Filter

They are known as carbon filters and are an alternative air filters to the media. They are installed along with the regular filter tips. They are used for disposal of cigarette smoke, chemicals and other odors. It eliminates the undesirable odor in the house. They are available in the filter pane, but not as good as the others.

Factors to consider when choosing a furnace filter

Filter dimensions or length, width and thickness especially in replacement filters
or maintenance of the filters regularly for longer life Team
additional cost or electricity bill for using the regular oven fan
or special conditions of family members, for example, asthma lung diseases
or the efficiency of filters in terms of qualifying MERV

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