Air Purifiers (cont.)

Air Purifiers (cont.)

Ionic air purifiers
Ionic air purifiers do not have a cloth filter like the HEPA machines. They work by “ionizing” the air, causing particulates to gain a positive or negative charge. Why charge the particles?
The charge is necessary for two reasons. The air ionizer contains collection plates that have an opposite charge from the particles in the air, so the particles are drawn to the collection plates (these are referred to as “capture” ionic purifiers). Also, the particulates can be attracted to other particles that have an opposite charge. When this happens the two particles with opposite charges wind up sticking together and falling out of the air (these machines simply release ions into the air without capturing them on plates). By the way, many people like ionizers because they are very quiet compared to most HEPA machines.
Advantages: can remove extremely fine particles anywhere in a room; even several feet away from the machine. Disadvantages: Not effective on odors; doesn’t kill germs but removes them from household air.

Ultraviolet light air purifiers

Ultraviolet (UV) lamps are known to sterilize micro-organisms that pass through it, including germs, viruses, bacteria, and mold; so microorganisms, after treated with this light, can no longer reproduce and grow. At least we know this to be true when UV light is used in sufficient dosage and a sufficiently long period of time to do its job.

When used in an air purifier, does the UV light have enough time to perform and sterilize correctly while air is moving through it, possibly at a brisk rate of speed? There is an innovative approach that uses UV lamp combined with a HEPA filter, so particles trapped in the filter can be treated with UV light for an effective amount of time.

Advantages: Helps destroy microorganisms that cause disease. Disadvantages: Not effective on allergens, smoke, odors, or chemicals.

Purifying hydroxyl radicals

Hydroxyl radicals are powerful cleansing agents that occur naturally in the Earth’s atmosphere. They are created when oxygen atoms pull a hydrogen atom from water vapor, which then form the radical. Hydroxyl radicals are 1,000,000 times faster at destroying pollutants in the air than ozone. They are the most powerful method of neutralizing mold, bacteria, and viruses.

New proprietary technology has combined hydroxyl radical technology with ultra violet light and negative ions resulting in an air purifying system that neutralizes every category of pollutant in your home, including odors, without the need for filters!

Advantages: removes every category of pollutants when combined with negative ions and UV light technologies; no filters needed; inexpensive. Disadvantages: only available from one manufacturer (See banner below).

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