Free Standard Shipping with the purchase of any Hoover® Cleaner | Flat Rate $4.99 Shipping on any Parts, Accessories & Solutions Air Purifier Filters-Hepa Pre & Carbon View products that use this part » When you need a replacement, make sure you only look for GENUINE Hoover® Parts. Genuine replacement parts including bags, belts and cleaning solutions are specified in order to assure peak performance. Look for the trademark Hoover® on all your part needs. Buy More, Save More! You save $5.00 total. You save $14.99 total. You save $24.99 total.About Activated Carbon Air Filtration Research Studies and Facts Activated carbon air filters are the most effective type of filter against chemicals, gases, cigarette smoke and other odors. How Activated Carbon Filters Work Activated carbon air filters consist of a vast system of pores of molecular size. These pores are highly adsorbent, forming a strong chemical bond/attraction to odorous, gaseous, and liquid contaminates, especially organic chemicals/compounds.

Activated Carbon Filter Facts and Studies Activated carbon air filters trap odors and chemicals in highly absorbent granules (or pores), which look like a hard scrub brush. Activated carbon is a charcoal that is treated with oxygen in order to open up millions of tiny pores between the carbon atoms, resulting in a highly adsorbent material. In a study commissioned by the U.S. Dept. of Energy, activated carbon filters were found to removed 60-70% of airborne ozone compared to filters without activated carbon. Another study commissioned by the U.S. Dept. of Energy found that activated carbon filters removed harmful VOC's (Volatile Organic Compounds) by 60-80%, and formaldehyde by 25-30%. According to a report released by the Centers of Disease Control, Dept. of Health and Human Services, and the National Institute for Occupational Safety and Health, activated carbon is an excellent adsorber/absorber of most organic chemicals. Chemicals that Activated Carbon Filtration is Effective at Removing:

About Other Air-Cleaning Technologies: HEPA Air FiltrationActivated Carbon FiltrationGermicidal UV (Ultraviolet) PurificationNegative Ion PurificationPhotocatalytic OxidationCarbon filtering is a method of filtering that uses a piece of activated carbon to remove contaminants and impurities, utilizing chemical adsorption. When a material adsorbs something, it attaches to it by chemical attraction.air purifier help sleep The huge surface area of activated charcoal gives it countless bondingair duct cleaning commercialWhen certain chemicals pass next to the carbon surface, they attachcleaning fixed barrel air rifle to the surface and are trapped. Each piece of carbon is designed to provide a large section of surface area, in order to allow contaminants the most

possible exposure to the filter media. One pound (454g) of activated carbon contains a surface area of approximately 100 acres (1 km/kg). This carbon is generally activated with a positive charge and is designed to attract negatively charged water contaminants. commonly used for water purification, but is also used in air There are two predominant types of carbon filters used in the filtration industry: powdered block filters and granular activated filters. carbon block filters are more effective at removing a larger number of contaminants, based upon the increased surface area of carbon. Activated carbon, also called activated charcoal or activated coal, is a form of carbon that has been processed to make it extremely porous and thus to have a very area available for adsorption orThe word activated in the name is sometimes substituted by active. Due to its high degree of microporosity, just one gram of activated carbon has a surface area in excess of 500 m (or about 2

tennis courts), as determined typically by nitrogen gasSufficient activation for useful applications may come solely from the high surface area, though further chemical treatment often enhances the adsorbing properties of the material. Activated carbon is usually derivedProperties of activated carbon include: Activated carbon can be enhanced and impregnated and/or custom blended to be a more specialized adsorbant. Air Cleaners offers a super impregnated carbon blend where the problems are formaldehyde Activated carbon adsorbs to it's surface. When there is no more surface left to adsorb to the carbon, it is depleted of its capability to be effective. Large amounts of carbon will last longer then small amounts because it has larger amounts of surface area for adsorption. Also, depending on amounts of pollutants being adsorbed, a small amount of carbon can be depleted within weeks making it useless. Air Cleaners offer either a 18

or 26 pound carbon bed. The more contact time carbon has with a pollutant, the better chances of it adsorbing it. The thicker the carbon filter theIf the pollutant has to go through a long maze of activated carbon, it's chances are better of being adsorbed. that thin carbon filters that are used in inexpensive air purifiers are not very effective at removing chemicals, fumes and odors from the superior level of hardness makes them cleaner than most other carbons and gives them longer life expectancy. This, combined with their high activity level, makes them well suited for use in any kind of carbon filter or system. Aside from general air purification and deodorization, our coconut shell carbons are also very effective in solvent recovery applications. Acid Washed Granular Coconut Shell Activated Carbon, like its name, comes from the coconut shell that has been undergone steam activation process to create its activated carbon form.

During activation, it creates millions of pores at the surface of the carbon thus increasing the totalActivated carbon pores can be divided into three general Coconut shell carbon has mainly micro-pores to meso-pores, and due to its unique distribution of pores diameter, coconut shell activated carbon are very popular in the gas phase purification and potable water purification industries. Air Cleaners use Coconut Anthracite is a hard, compact variety of mineral coal that has a high lustre. It has the highest carbon count and contains the fewest impurities of all coals, despite its lower calorific content. Anthracite is the highest of the metamorphic rank, in which the carbon content is between 92% and 98%. term is applied to those varieties of coal which do not give off tarry or when heated below their point of ignition. Anthracite ignites with difficulty and burns with a short, blue, and smokelessAnthracite carbon is best for exhaust fumes, burning wood or petrochemicals.