Ozone air purifiers or "ozone generators" are known for their effectiveness at reducing and masking the smells of new carpet and acrolein, a chemical partly responsible for the noxious odor of second-hand tobacco smoke. There are two types of ozone generators.Direct ozone generators work by intentionally producing ozone that goes out to cancel out some chemicals in the air of your home. For bars, fire restoration jobs, and other major odor issues, nothing beats a direct ozone generator. When possible, vacate the premises, including pets, plants, art, and important items that are made of rubber. Seal the building and run the generator for a few days. Thoroughly ventilate the interior before reentering.Indirect ozone generators are part and parcel with ionic air purification systems. Ionic air purifiers produce and send out negatively charged ions into the air, causing chemicals and particles to drop to the floor and surfaces. You clean off the surfaces as part of your regular chores. Ozone is one byproduct of this process.Ozone, which is composed of three oxygen molecules, changes the air by interacting with certain chemicals, transforming them into carbon dioxide, oxygen, water, a variety of aldehydes, and formic acid. In high enough amounts, ozone is bad for your health. According to the Environmental Protection Agency, ozone can decrease lung function, aggravate asthma, irritate your throat, make you cough, give you chest pain, cause shortness of breath, inflame the lung tissue, and increase your susceptibility to respiratory infection. That's why human health advocacy organizations worldwide have recommended a maximum outdoor ozone exposure of 50 to 80 ppb (parts per billion.)As a result, many manufacturers of ozone air purifiers have voluntarily limited their indoor units to outputs of 50 ppb. Note that the further you are away from the unit, the less concentrated the ozone is. So place the unit at least two to ten feet away from you.For regular use, look for an indirect ozone generator with a low tested emission rate. Consumer Reports recommends the Friedrich C-90A. The fan is a little noisy, but the Friedrich C-90A scores high marks for low ozone emission rates and effectiveness at reducing smoke, dust, and pollen.Air Purifiers Info provides detailed information on home, ionic, ozone, and HEPA air purifiers, as well as reviews of the best air purifiers on the market today. Air Purifiers Info is the sister site of Air Filters Web.


air purifiers, home air purifiers, ionic air purifiers
The military designed the first HEPA filter in the 1940s for use in the Manhattan Project, when safety from free-floating nuclear material was a primary concern. Today, HEPA air purifiers are very widely used to remove dust, pollen, mold, bacteria, and other airborne particles. They are perhaps the most tried-and-true method of air cleaning to date. The best part about HEPA air purifiers is that they emit no byproducts or secondary pollutants such as ozone.The Department of Energy continues to be the sole certifying body for all HEPA filters. The DOE has strict standards. All HEPA filters must be able to catch at least 95% of particles as small as 0.3 micrometers. If you are shopping for HEPA air purifiers, beware of "HEPA-type" or "HEPA-like" filters. They did not pass DOE muster on their ability to filter air.HEPA Air purifiers work by drawing in air via a fan. Large particles get trapped in the folds of the filter, while small particles and chemicals attach to the charcoal matter in the filter.Some fans have a straight design whereby the air is drawn in from the back and blown out through the front. These units clean the air very quickly and are good for aiming at your bed or sitting area.Other fans are unidirectional, pulling in air from all sides of the machine and blowing the filtered air out in all directions. These are good for cleaning the air in whole rooms.Related to HEPA filters are ULPA filters. ULPA means Ultra High Efficiency Particulate Air. ULPA filters are only used when there is a significant biohazard or equally harmful environment. You won't need one at home; if you do, you shouldn't be living there.Friedrich, Oreck, and Whirlpool are some of the leaders of the industry. Their HEPA air purifiers are known for their relative quietness, air-cleaning efficacy, and energy efficiency.Air Purifiers Info provides detailed information on home, ionic, ozone, and HEPA air purifiers, as well as reviews of the best air purifiers on the market today. Air Purifiers Info is the sister site of Air Filters Web.


The Importance of Home Air Filters
Many people are not aware that the air inside our homes is five times harmful than the air outside. Because of airtight home and office building constructions, the airborne pollutants are trapped inside, making the contaminated air unable to escape. Clean air is even more important inside the home than it is outdoors. Home air filters, also called as ""furnace filters"", keep the coils and heat exchanges on the heating and air conditioning system clean, which otherwise make the system work harder. Home air filters contain high efficient motors and anti-microbial filters, resulting in healthy and clean air in home or office. There are manifold types and styles of home air purifiers, including HEPA, carbon, zeolite, UV light air purifiers, and more. Some air purifiers have filters, and some use stainless steel rods to collect contaminates.Home air filters work by drawing air through the layers of different air filters. The air first passes through a pre-filter where large particles are removed. Then the air passes through a coconut shell activated carbon filter that absorbs gases, chemicals, odors and vapors. After this absorption, the air enters two anti-microbial filters for further filtration. Then the air goes on to the 80 square feet HEPA media where 99.97% of all allergens and particulate larger than 0.3 micron are removed from the resultant air. From this HEPA media, the clean air is released back into the room. The size of airborne particles that a home air purifier captures is measured in microns. A micron is hundred times smaller than a human hair and is obviously not visible to the naked eye. The most important thing to remember about home air filters is to change them regularly. Upgrading and properly maintaining home air filters is easy and helps improve indoor air quality.Air Filters Info provides detailed information on home, car, electronic, and HEPA air filters, as well as air conditioner filters and air filter manufacturers. Air Filters Info is the sister site of Air Purifiers Web.