Why Do We Need an Air Purifier in our Home?
We’re all familiar with air purifiers in airplanes, at the mall, and in the hospital, where they keep people calm and stress-free by insuring that the air breathed is cool, clean, and fragrant. The air in our homes, too, can be vastly improved by means of an air purifier.
It’s a proven fact, although many of us wouldn’t care to admit it, that the air in our homes is filled with contaminants, making it a lot dirtier than the air outside. There are the usual culprits, such as particles in the air from cooking, from smoking, from enjoying a fire in the fireplace. Pets, no matter how lovable, are going to slough off dead skin in the form of dander, that’s why you should be looking for best air purifier for pets. Carpets and rugs are literally storehouses of all kinds of contaminants, all of which are released into the air when we vacuum. Those dust mites in upholstered furniture are the sources of more. If we have a garden outside or keep indoor plants, there’s going to be pollen in the air. And don’t forget airborne illnesses such as the common cold, the germs of which are wafted throughout our house every time someone sneezes.
But we’ve probably gotten quite used to the air in our homes, even if it is, well, polluted. Why should we clean it? There are a number of reasons, the most important of which has to do with our health. People who suffer from allergies of any kind really do need to keep the indoor air they breathe as clean as possible. This goes too for people with any kind of respiratory condition, such as asthma. Even if we don’t suffer from such conditions, air purifiers eliminate germs, bacteria, and mold that can make any of us ill.
Clean air helps us to sleep more soundly and to eliminate stress. There’s an element of convenience involved too: keeping the air clean means less dusting and general cleaning around the house. Carpets in a home with an air purifier will harbor fewer particles, and will last longer with less wear and tear. With less heavy moisture in the house, surfaces naturally stay cleaner and brighter. Our homes have a light, clean fragrance.
How do Air Purifiers Work?
Air purifiers work by removing the contaminants in the air. There are five basic types of air purifiers. Air cleaners are probably the simplest of these. They consist of a special filter through which the air in a room must pass. Air cleaners may be as simple as a filter placed next to the furnace, or they may be mobile stand-alone units. Ionizing purifiers are much more complex, changing the molecular structure of contaminating particles so that they clump together and sink out of the air. Ozone generators function in a way similar to the ionizing purifiers, but eliminate contaminating particles by emitting ozone gas. Adsorbents suck the dirty air through charcoal or some other purifying substance. Finally, there are air purifiers that destroy bacteria by emitting ultraviolet radiation.
When it comes to buying and owning a single air purifier or multiple units for a household or commercial workspace, there is one word to keep in mind. This word is the acronym HEPA. It stands for High-Efficiency Particulate Arresting. HEPA is the gold seal and standard for quality as far as air purifiers go. Not all purifiers are manufactured to this standard, and for some people, the design is not a deal breaker. However, having this kind of unit is something like driving a vehicle with power steering as opposed to one without. To be sure, the added feature is not technically necessary. But the natural question is why would you go without it, especially when they are effective at ridding the air of most every particulate?
There are a number of irritants these air purifiers clear out of the air. Some of these particulates include dust mite debris, everyday household dust, human hair and fur from various pets. Some other air pollutants Hepa air purifiers handle are bacteria, spores, mold and different types of smoke. The HEPA purifier is designed to be capture and filter pollutants from the air that measure as small as 0.3 microns. The micron, as the name suggests, is a measurement invisible to the naked eye. And anything smaller than 0.3 of a micron can get past a HEPA filter.
Hepa filters work in four different ways to trap harmful particles floating throughout the air. They use impaction, diffusion, interception and sieving. Impaction works on particles that weigh 0.5 microns or more. These particles are large enough to slam in the material of an air purifier’s mesh and are easily caught. Diffusion works for particles that are around 0.1 microns. At that size, the term impact does not really apply as the particles just float lightly through the air, but they get caught in the mesh of purifiers just the same.
Interception works for particles that are not heavy enough to pick up speed as they move throughout the air. However, they are big enough in their area that they are easily trapped when they come into contact with mesh fibers. Sieving happens when particles are 1 micron or bigger. At that size, these they are too big to fit into the spaces of fibers of a mesh. These are the particles that do most of the clogging of a purifiers mesh. When all four methods work together ninety-nine per cent of air pollutants are trapped within a HEPA filter mesh.