There is much confusion over what causes allergies but we will shed some light on the true nature of allergies in the home environment and how an allergies air purifier can reduce symptoms.

Allergies can be caused by exposure to pollution in a particle form such as dust mite or a chemical form such as formaldehyde. A human body can have different immune responses to a pollutant depending on various environmental factors. The good news is, choosing the right air purifier can minimize allergy symptoms while at home.

The indoor air purifier is a simple device which can make a drastic improvement in your indoor air. The real key to understanding an air purifier is to remember that only the indoor air that travels though the unit gets cleaned. For example, very large rooms may require two small air purifiers at either end rather than one large unit in the middle.

Proper Technology Is The Key
The air purifying technologies available should be chosen according to the type of pollutant you are trying to remove from the indoor air. Adsorption media such as activated carbon are effective at removing chemical pollutants, high efficient particulate aie (HEPA) and electronic technologies are better suited to remove particles. There are also ultraviolet (UV) units available which are specifically designed to kill microorganisms such as viruses. Utilizing the various technologies together will make the greatest improvement in the indoor air quality of a home. Airborne particles such as pollen, dust mites, cat dander, household dust and pesticide dust are considered a particulate pollutant and are best addressed with a HEPA air purifier. Other airborne particles such a smoke are removed more efficiently with an electronic air purifying system. A HEPA filter within an air purifier is very effective but the filters must be changes on periodical basis up to 5-years depending on the manufacturer. Electronic filter elements do not require changing but do need to be washed regularly to remain effective.

Microorganisms
Microorganisms such as viruses, bacteria and molds must be controlled if a household member has a weakened or damaged immune system including the very young or elderly. The most effective method to control microorganisms is the use of a UV air purifier. UV light can destroy or change the DNA of a microorganism making it unsubstantial as an indoor pollutant. Air purifiers which employ both HEPA and UV technologies are an ideal combination for reducing as much as 85% of indoor pollutants.

Chemicals
Chemicals in the indoor environment are removed by a process known as media adsorption. Media adsorption such as activated carbon granules have a lot of surface area and actually adsorb chemicals from the air. Activated carbon granules are the best choice as a general purpose chemical removal media. There are other media's available such as Zeolite and potassium permanganate which target chemical compounds that activated carbon is ineffective at removing.. A media should be chosen by understanding which chemical compounds you are targeting for removal from the indoor air. Air purifiers which contain activated carbon polyester filter media should not be used to remove chemicals since they do not contain enough surface area. Utilizing the proper air purifier technology for a specific indoor air pollutant can dramatically reduce allergy symptoms while in the home environment.