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Activated Carbon Filter Efficiency
Activated carbon filter is able to capture and hold gas molecules. The surface of the activated carbon filter consists of millions of small pores. These pores allow to capture a number of odorant and toxic gases.
The activated carbon filters should be replaced depending on the ambient air pollution and the frequency of use. For example, the activated carbon filters used in a smoking area should be replaced once every three or six months.
The activated carbon filter cannot filter different gases uniformly. Please refer to the following table to see the gas types and gas rates possibly retained by the activated carbon filter.
You will see the numbers ranging from 1 to 4 at the opposite part of each gas in this table. These figures show at what ratio the filter captures the said gas.
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1-Low 2-Medium 3-Satisfactory 4- Excellent
| Wood alcohol | 3 | Gas oil | 4 | Naphtha (petroleum) | 4 |
| Air-Wick | 4 | Hiding Agents | 4 | Naphthalene | 4 |
| Acrylic acid | 4 | Fertilizer | 3 | Naphthalene | 4 |
| Acrylonitrile | 4 | Hospital odors | 3 | Nicotine | 4 |
| Acrolein | 3 | Animal odors | 3 | Nitric acid | 3 |
| Alcoholic beverages | 4 | Hexane | 4 | Nitrobenzenes | 4 |
| Amyle alcohol | 4 | Hexyne | 3 | Nitroethane | 4 |
| Amyle acetate | 4 | Hexylene | 3 | Nitroglycerin | 4 |
| Amyle ether | 4 | Heptane | 4 | Nitrogen dioxide | 2 |
| Amines | 2 | Heptylene | 4 | Nitromethane | 4 |
| Ammonium | 2 | Hydrogen | 4 | Nitropropane | 4 |
| Anesthetic | 3 | Hydrogen bromide | 1 | Nonane | 4 |
| Aniline | 4 | Hydrogen chloride | 2 | Octalene | 4 |
| Antiseptics | 4 | Hydrogen cyanide | 2 | Octane | 4 |
| Acetic anhydride | 4 | Hydrogen sulphide | 3 | Ripe fruits | 4 |
| Acetic acid | 4 | Radiation product | 2 | Organic compounds | 4 |
| Acetylene | 1 | Drug odors | 4 | Organic chemicals | 4 |
| Acetone | 3 | Soot | 4 | Automobile exhaust gas | 3 |
| Asphalt smoke | 4 | Iodine | 4 | Ozone | 4 |
| Wastes | 3 | Iodoform | 4 | Eucalyptole | 4 |
| Fish odors | 3 | Isophorone | 4 | Perfume odorants | 4 |
| Bathroom odors | 4 | Isoprene | 3 | Perfumes, cosmetics | 4 |
| Benzene | 4 | Isopropyl alcohol | 4 | Pentane | 3 |
| Borane | 3 | Isopropyle acetate | 4 | Pentanone | 4 |
| Paint Odor | 4 | Cadaverine | 3 | Pentylene | 3 |
| Rotten food | 4 | Camphor | 4 | Pentene | 3 |
| Bromine | 4 | Sewer odors | 4 | Perchloroethylene | 4 |
| Butadiene | 3 | Gangrene | 3 | Cheese | 4 |
| Butane | 2 | Cancer odors | 4 | Phoagne | 3 |
| Butanone | 4 | Caprylic acid | 4 | Cooking odors | 4 |
| Butyl acetate | 4 | Carbolic acid | 4 | Propane | 2 |
| Propane | 4 | Carbon disulfide | 4 | Propyl ether | 4 |
| Butyl chloride | 4 | Carbon tetrachloride | 4 | Propyl chloride | 4 |
| Butyle sellosolv | 4 | Carbondioxide | 1 | Propyl mercaptan | 4 |
| Butylene | 2 | Carbon monoxide | 1 | Propyne | 2 |
| Butine | 2 | Mixed odors | 4 | Propionic acid | 4 |
| Butyric acid | 4 | Bitumen | 4 | Propionaldehyde | 3 |
| Butyl aldehyde | 3 | Rubber | 4 | Putrescine | 3 |
| Bleach | 3 | Melon | 4 | Deodorants | 4 |
| Flower smells | 4 | Chlorbutadiene | 4 | Resins | 4 |
| Rotted substances | 3 | Chlorine | 3 | Soaps | 4 |
| Different oils | 3 | Chlorobenzene | 4 | Garlic | 4 |
| Disinfectants | 4 | Chloroform | 4 | Sellosolv | 4 |
| Dictloroethyl ether | 4 | Chloronitropropane | 4 | Sellosolv acetate | 4 |
| Dichloroethylene | 4 | Chloropicrin | 4 | Cigarette smoke odor | 4 |
| Dicloromonofluometan | 3 | Rotten oil | 4 | Vinegar | 4 |
| Diclopropan | 4 | Odor spreader | 4 | Citrus and other fruits | 4 |
| Diclorotetrafluometan | 4 | Corrosive gases | 3 | Skatole | 4 |
| Dimethylaniline | 4 | Carbonated materials | 4 | Onion | 4 |
| Dimethyle sulphate | 4 | Creosol | 4 | Solvents | 3 |
| Dioxane | 4 | Creosote | 4 | Styrene monomer | 4 |
| Dipropyle ketone | 4 | Crotonaldehyde | 4 | Stoddard solvent | 4 |
| Diethylamine | 3 | Xylene | 4 | Sulfuric acid | 4 |
| Diesel fume | 4 | Mildew | 3 | Sulphuredioxide | 2 |
| Diethyle ketone | 4 | Mold | 3 | Sulfur trioxide | 3 |
| Spilled beverages | 4 | Chicken house odor | 4 | Embalming odors | 4 |
| Smoke | 4 | Stainable gases | 3 | Irritants | 4 |
| Sour milk | 4 | Meil sellosolv | 4 | Cleaning agents | 4 |
| Industrial wastes | 3 | Meil sellosolv acetate | 4 | Smell of sweat | 4 |
| Ethane | 1 | Menthol | 4 | Tetrachloroethane | 4 |
| Ether | 3 | Methane | 1 | Tetrachloroethylene | 4 |
| Ethyl acrylate | 4 | Methyl acrylate | 4 | Toluene | 4 |
| Ethyl alcohol | 4 | Methyl alcohol | 3 | Toluidin | 4 |
| Ethyl acetate | 4 | Methyl acetate | 3 | Trichlorethylene | 4 |
| Ethyl benzene | 4 | Methyl bromide | 3 | Trichloroethane | 4 |
| Ethyl bromide | 4 | Methyl butyle ketone | 4 | Toilet odors | 4 |
| Ethyl ether | 3 | Methyl ether | 3 | Salting cabbage | 4 |
| Ethyl format | 3 | Methyl ether ketone | 4 | Incense | 4 |
| Ethyl chloride | 3 | Methyl format | 3 | Urea | 4 |
| Ehtyl mercaptan | 3 | Methyl isobutyl ketone | 4 | Uric acid | 4 |
| Ethyl silicate | 4 | Methyl chloride | 3 | Valeric acid | 4 |
| Ethylamine | 3 | Methyl chloroform | 4 | Valeraldehyde | 4 |
| Ethylene | 1 | Methyl mercaptan | 4 | Lacquer fumes | 4 |
| Ethylene dichloride | 4 | Methyl oxide | 4 | Vinyl chloride | 3 |
| Ethylene chlorhydrin | 1 | Methylene chloride | 1 | Body odors | 4 |
| Ethylene oxide | 4 | Methylmethacrylate | 4 | Fuel gases | 3 |
| House odors | 4 | Methyl cyclohexanol | 4 | Burnt meat | 4 |
| House odors | 4 | Methyl cyclohexanol | 4 | Burnt food | 4 |
| Pet odors | 4 | Methyl cyclohexanol | 4 | Burnt oil | 4 |
| Phenol | 4 | Slaughter house odors | 3 | Burning odors | 3 |
| Film tab odors | 4 | Pop corn and sugar | 4 | Adhesives | 4 |
| Flurotrichloromethane | 4 | Monoflurotrchloromethane | 4 | Adhesives | 4 |
| Formaldehyde | 4 | Monoklorobenzene | 4 | Food flavors | 3 |
| Formic acid | 2 | Naphta (coal tar) | 4 |