Indoor air pollution is really a serious problem. According to the Environmental Protection Agency (EPA), air pollution levels are two to five times higher indoors. In a few buildings with a lack of proper ventilation, the indoor air might be 100 times more polluted than the air outside! This is because modern buildings are constructed with energy efficiency in mind. However, the tight seals that produce a house energy-efficient also trap pollutants inside. Together with that, the average American takes nine out of ten breaths indoors, so it’s imperative to make sure that your indoor air is free of allergens and other impurities.
Air purifiers eliminate allergens, toxic chemicals, and other dangerous pollutants. This short article explains why people use air purifiers, how they work, which air purifiers you need to avoid, and how to pick the very best air purifier for your needs.
Common Indoor Air Pollutants
What is the source of indoor air pollution? In terms of organic pollutants, mold and dust mites are everywhere – and they’re both most typical reasons for year-round allergic rhinitis (hay fever). Pollen can also be a pervasive allergen that always finds its way into your house since it’s so small and sticky. When you yourself have pets, they will surely spread their dander to every nook and cranny of one’s home. Many viruses and bacteria may also be airborne.
Even though they’re not organic allergens, Volatile Organic Compounds (VOCs) cause lots of people to have allergic reactions and other health problems. VOCs include formaldehyde, fragrances, pesticides, solvents, and cleaning agents. VOCs can enter the air through chemical off-gassing from furniture, new carpets, adhesives, plastics, and various building materials. Furthermore, many VOCs are known carcinogens (cancer-causing agents).
Environmental contaminants like cigarette smoke, co2, carbon monoxide, and nitrogen dioxide may also be contained in your indoor air, in addition to toxic heavy metals like airborne lead, mercury vapor, and radon.
How Air Purifiers Work
HEPA air purifiers use a HEPA air filter, that was developed by the Atomic Energy Commission in the 1940s as a way to filter radioactive contaminants. HEPA filters set the conventional for air purifiers: to be classified as HEPA, a filter must capture at the least 99.97% of pollutants at 0.3 microns or larger. Top-selling HEPA air purifiers range from the Austin Air purifier, available with a HEGA (High Efficiency Gas Adsoprtion) filter, along with air purifiers from IQAir, Allerair, Blueair, and Honeywell.
Activated carbon filters remove gases, odors, and chemical toxins. The carbon is “activated” if it is treated with oxygen, which opens up countless tiny pores to attract and adsorb chemicals. Impregnated carbon filters have been treated by having an additional chemical, normally either potassium iodide or potassium permanganate; these chemicals, referred to as chemisorbents, increase the carbon filter’s capability to trap VOCs and other chemically reactive gases.
Electrostatic filters use an electrostatic charge to attract pollutants and trap them on collector plates. These filters are great for those who don’t wish to have to be worried about changing HEPA filters, however if the collection plates are not cleaned frequently, they quickly lose efficiency. Also, beware that some electrostatic filters emit ozone, which is known to be a robust lung irritant and can be quite irritating with a individuals with asthma or allergies. The Friedrich air purifier is, undoubtedly, the very best electrostatic air purifier, in addition to the overall top-ranked air purifier in previous Consumer Reports rankings.
Charged media filters give pollutants an electrostatic charge before collecting them in a conventional filter. Charged media filters are typically quite effective, but like electrostatic filters, they lose efficiency rapidly-and they could require frequent and expensive filter changes. Some charged media air filter units also emit ozone. The main advantage of charged media filters is that they’re quieter and more energy-efficient than HEPA air purifiers. The Blueair air purifier is the greatest charged media filter, and it doesn’t emit ozone.
Where and How exactly to Use an Air Purifier
In the event that you suffer with allergies (especially if you’re allergic to dust mite allergen), then the very best area for an air cleaner can be your bedroom. It’s essential to have clean air in your bedroom because spent about a next of your lifetime there. 辦公室空氣 If you’re allergic to animal dander and have pets, then you might want to position an air cleaner in the room where your pets spend most of the time-and keep consitently the pets from the bedroom! Also, you shouldn’t place an air cleaner in the corner of a space; it should be at the very least several feet from the walls for maximum air flow.
You need to run your air purifier continuously for optimum performance. Most air purifiers have high and low settings. Even if you go on vacation, we recommend that you keep your air purifier running on low. Otherwise, you’ll return to a home packed with polluted air! If you are worried about your electric bill, find out how much energy an air cleaner uses before buying it. Typical HEPA air purifiers can use anywhere from 50 watts on low to 200 watts on high. For comparison, a typical lamp uses about 60 watts, while a typical computer uses about 365 watts.
Air Purifiers to Avoid
Avoid ozone generators and ionizing air cleaners. These air purifiers create ions that attract pollutants; however, most of the pollutants are released back to the air, sometimes leading to dirty spots on nearby walls. Besides the truth that they don’t do a good job of cleaning the air, ozone generators and ionizing cleaners also emit ozone. Ozone, a principal component of smog, could potentially lead to a critical asthma attack.
Moreover, David Peden, researcher at the Center of Environmental Medicine and Lung Biology at the University of North Carolina, has examined how ozone exposure might exacerbate the allergic response of individuals who are allergic to dust mites, and his results claim that ozone worsens the asthmatic response. The EPA has warned consumers against using ozone generators, and Consumer Reports recommends against the newest Ionic Breeze Quadra, regardless of the addition of OzoneGuard, a tool meant to get rid of some of the dangerous ozone emitted by the Ionic Breeze.
Consumer Reports points out: “Our air-cleaning tests show that the Ionic Breeze with OzoneGuard does a poor job of removing smoke, dust and pollen particles from the air when new and after 500 hours of continuous use” and “the Ionic Breeze with OzoneGuard still adds ozone to the air.”
How exactly to Choose the Best Air Purifier
The air purifier market is vast and riddled with confusing and often misleading advertising schemes. If you’re buying an air cleaner, then you definitely should first consider what sort of pollutants you’re wanting to eliminate. Like, in the event that you end up having cigarette smoke, then you’ll desire to make sure that your air purifier has the capacity to eliminate fumes, VOCs, and other gases.