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www.reference.com/article/easy-change-car-s-air-filter-797aac663e68e34d

For most cars, it is very easy to change the air filter, according to Edmunds.com. First, make sure the car is turned off and that it has cooled down. This is important, as the filter is near parts of the engine that get very hot when the engine is running.

www.reference.com/article/symptoms-blocked-air-filter-6d5a7d24d365c029

One symptom of a blocked air filter is that the furnace stops operating. Furnaces have an over-limit cutoff switch that stops operation if the temperature in the heat exchanger becomes too high. As a result, according to the Family Handyman, the home may remain below the thermostat setting.

www.reference.com/article/purpose-car-air-filter-950b159e4ec9848b

The purpose of a car's air filter is to prevent dirt and other particles from entering the fuel system or engine. Air filters also prevent particles from entering the air conditioner system.

www.reference.com/article/self-cleaning-car-air-filter-e63c2f92c61364e6

Self-cleaning air filters for cars would not require the air filter to be removed from under the hood of the car, but there are no self-cleaning car air filters for most family-sized vehicles as of 2015. Self-cleaning air filters are used for industrial applications and large automobiles with diesel

www.reference.com/article/uses-water-filter-307590748cab2b55

Water filters are used to remove chemical, physical and biological contaminants from water. By removing these contaminants, water filters improve the smell, taste and safety of water used for drinking, cooking and bathing. They are also used to aid in meeting public health standards for swimming poo

www.reference.com/article/filtered-water-332020b2a0c42c00

Filtered water is water that has been treated with a chemical or mechanical process to remove particles and pollutants. The exact components that are removed from the water vary with the filtration process.

www.reference.com/article/air-conditioners-filters-3fafd6af258d72f0

Filters are in almost every air conditioner manufactured, and they are generally located upstream of the evaporator coil. The filters can be located in the air return grille or special duct slots. The primary reasons for filters are to clean the air being cooled and to protect the cooling equipment.

www.reference.com/article/air-conditioners-need-filters-d050e0418def4294

Air conditioners need filters to clean debris, such as dust and dirt, from the air. Without a filter, dust and dirt can travel directly to the air conditioner's evaporator coil and cause damage to the system.

www.reference.com/article/can-buy-heat-pump-air-filters-d7762042d7327f7b

Shoppers who need a new filter for their heat-pump system can purchase compatible options through Filters Fast, DiscountFilters.com or RememberTheFilter.com, as of 2015. These three online retailers specialize in furnace filters and related components, boasting a variety of options for most modern h

www.reference.com/article/should-clean-filter-air-conditioner-81e52c82786e732f

Most filters on an air conditioner should be cleaned or changed once every three to nine months. The frequency may depend on the recommendations in the owner's manual for the specific unit and on the amount of allergens or dust in the geographic area.