Filterless Air PurifierFilterless air purifier is one of a kind of air cleaner that disperses clean air without the need of caring for or replacing filters. Based on a unique technology, filterless air cleaners purify air by changing the composition of the components of the air. Changing the natural composition of the air leads to suspended particles clinging to each other as well as hard surfaces thereby preventing them from being in the air and entering your lungs. The "filterless" aspect of an air purifier is very attractive to many people who are considering the purchase of an air filter. The filter in an air cleaner is a sieve that removes the suspended harmful particles such as dust, allergens, pet dander, chemicals, odors, and other harmful solids from the air and allows clean, dust and pollutants free air to circulate in your home. However, some people believe that air cleaners without filters tend to clean the air less than as compared with air cleaners with filters. While HEPA filtered air cleaning machines are a definite buy, let's take a look at the different types of filterless air purifier options available in the market. 1. Electrostatic - A large number of filterless air purifiers are fitted with electrostatic precipitators. Some of the manufacturers offering electrostatic filterless cleaners for air include Iconic Breeze, Oreck, and Friedrich C90. The airborne particles are electrically charged and gathered on a charged plate and they remain there. So, you'll need to wash these charged plates often enough so that they don't allow polluted air to pass through. But with time and exposure to oily residues, furnaces etc, the plates tend to be covered with an oxidized layer that can be tedious to remove. Some filterless air purifier manufactures add preflitered carbon to ensure that the pollutants are contained, but this does mean that the filterless benefits are eliminated to some extent, as also adding to the cost of the product. 2. Ionic - This type of air cleaner uses ionization technique to eliminate the pollutants. However, the ionizer only emits ions into the circulating air that gather airborne dust or other particles into bundles and the bundles grow they fall down to ground or stick to other solid surfaces such as walls, furniture etc. Though these air cleaners are filterless, the particles in the air don't get removed permanently. They soon become airborne and the ionizing cycle begins again. 3. Photocatalytic - The very first technology to actually come out with filterless air purification, the photocatalytic oxidation process eliminates the use of filters. Instead, a coated fluorescent light bulb is used to emit ultraviolet light that stimulates metal semiconductors that in turn produce oxidants that are capable of destroying small particles, chemicals, and other stale air causing pollutants. The best part about this technology is that it destroys even the smallest of airborne particles, which even the conventional filters can't sieve out, and does ensure 100% pollution free, clean, and healthy air. Portable and easy to store, easy to use, filterless air purifier has its pros and cons. However, you must do your own research before buying an air cleaner after all it's a question of your family's health and well being. |