The air then passes through three stages of filtration: Let’s look at some of the offerings on the MSN list of the top 10 charcoal air purifiers:ģ-in-1 air purifiers: You’ll see electric air purifiers that have a fan that draws the air in the room into the device. They use activated charcoal together with other air filtering technologies. And once it gets saturated and doesn’t effectively remove odors anymore, you can reactivate it by putting it in direct sunlight for 1 hour, and use it again! You can repeat this for up to two years!īut there are also air purifiers that are a bit more sophisticated. It can also absorb moisture from the air, which will help prevent mold and mildew buildup in your home. ![]() It can also absorb the odors of cigarette smoke or cooking. You can place one of these packages in the bathroom, or in your automobile, or with your clothes. It passively absorbs odors and impurities in the air. An example is the AirJoi Bamboo Charcoal Air Purifying Bag. ![]() So maybe we can just use activated charcoal to purify the air? Indeed, you’re able to purchase a packet of activated charcoal, and it will help eliminate odors. What types of Charcoal Air Purifiers are there? You can still come in contact with droplets from an infected person-so it’s not advised to rely only on air purifiers, even with activated charcoal, HEPA filters, and UV light. There is some evidence that an air purifier that uses UVGI may kill airborne pathogens (disease-causing agents), or weaken them that they’re not infectious anymore.īut, in viruses that are spread by large droplets, such as influenza, studies show that it doesn’t seem that a UVGI air purifier will be effective. With all of the concern about the spread of COVID-19, there is a great demand to see if air purifiers can remove viruses from the air, just like they remove pollutants and allergens.Īs we discussed, there are air purifiers that employ ultraviolet light, called Ultraviolet Germicidal Irradiation (=UVGI) to kill viruses, bacteria, and fungi. Can Charcoal Air Purifiers Eliminate Viruses? The adsorptive ability of activated charcoal is quite a wonder: it’s estimated that one pound of activated charcoal has the equivalent surface area of 100 acres of land! This enables it to catch gas molecules and harmful volatile organic compounds (abbreviated as VOCs), such as formaldehyde or benzene as in paint removers, that would otherwise pass through air filters. The silica gel will adsorb water vapor from the air so that your product stays dry. Adsorption, on the other hand, is where the molecules of the adsorbate create a film on the surface of the adsorbent substance.)Ī common example of an adsorbent is the silica gel packets (that say on them “Do not eat”!) that you receive when buying a product that’s sensitive to moisture. When you put a paper towel on a spill, the paper towel absorbs the liquid, because the liquid goes in between the fibers of the paper towel. Adsorption means that molecules of a substance (called the adsorbate) adhere to the surface of a solid (known as the adsorbent). That additional space that is created on the surface of activated charcoal allows it to perform adsorption. It removes other elements in the wood that are bound to the carbon, leaving space for other molecules to adhere to the carbon atoms. But, when charcoal is heated to an even higher temperature, it reacts with oxygen in the air. Charcoal is made from burnt wood, such as bamboo or coconut husks. But charcoal air purifiers have an added advantage: they employ activated charcoal. You can find many types of air purifiers on the market. ![]() What is special about a Charcoal Air Purifier?
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