What To Look For When Trying To Choose The Best Air Purifiers For Allergies

Air purifiers work by removing contaminants from the air. They are typically marketed to people who suffer from allergies as a way to deal with their symptoms. They can also be used to purify the air from second-hand tobacco smoke. Most of the best air purifiers for allergies are marketed as stand-alone units which can be easily moved from room to room. People who suffer from serious allergies will often have larger units permanently installed on their air handling units in their home.

When searching for the best air purifiers for allergies it is best to look for one that can handle mold spores, pollen, dust, pet dander and dust mite feces which is a common allergen. If someone in your house is a smoker, you will also want an air purifier that can had tobacco smoke.

Among some of the best air purifiers for allergies are systems that use ultraviolet germicidal irradiation. This purifies the air by passing it over ultraviolet rays usually in the form of a UV light. They usually have a fan that forces the air across the UV light. It is very important to place the lamps in the correct position if they are going to have the maximum effectiveness. The most efficient use of a system like this is to place it in the line duct system of a house.

Filter bases purification systems trap particles that float in the air through the process of size exclusion. Air is passed through a filter and larger particles are trapped in the filter.

HEPA filters are able to remove about 99.975 of particles that are 0.3 micrometers in size or larger. These filters are extremely efficient and are among the best air purifiers for allergies. They can be expensive to install, though. They require a fair bit of maintenance because they must be cleaned on a regular basis in order to be effective.

Another one of the best air purifiers for allergies is a system that uses activated carbon. This system absorbs chemicals at their molecular level. It is not capable of removing larger particles, however.

Polarized-Media Electronic Air Cleaners are systems which use electronically enhanced media. They combine the best elements of electronic air cleaners and large mechanical filters. They operate by converting a 24 volt current to a DC voltage that is safe which sets up a polarized electric field. Airborne particles passing over the field become polarized and then are captured by a disposable pad.

Related Articles:
http://www.nlm.nih.gov/medlineplus/allergy.html

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