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Air Purifier Buying Guide

A comprehensive air purifier guide that will give you all the information you need on how to buy a new air purifier.

Getting Started

Since we spend a lot of time indoors at home and work, we aren’t exposed to the cleanest air. Sure there are filters for the vents in our homes, but sometimes it just circulates dust. If you are looking to make a change and breathe in cleaner, fresher air indoors, you may want to consider getting an air purifier. When so much time is spent indoors, you want to make sure there is an environment conducive to a great work ethic as well as maintaining a healthy life-style. With the right air purifiers, you can keep your office or home clean and crisp.


Filtration systems
Filter-based air purifiers are the most popular. Their process is simple. A fan pulls air through a paper or mesh filter. The air filter itself can be a permanent, washable model or a replacement filter. If you are deciding on between the two of them, remember, washable filters are good for trapping dust, but they don't trap pollen and smaller particulates. Many newer air purifiers incorporate pre-filters that catch larger particles in the air flow to boost the efficiency of the main filter.
HEPA filters
High-efficiency particulate arresting filters, or HEPA, are designed to capture 99.97 percent of airborne particles measuring 0.3 micrometers or larger from the air as they pass through the filter. HEPA filters can effectively eliminate mold spores, bacteria and dust from the air. If you have allergies, asthma, or an increased susceptibility to illness, air purifiers with HEPA filters are your best choices.
Activated carbon
Filters by themselves are not designed to properly eliminate odors. This is why many air purifiers include some form of activated carbon in the design to absorb odors and chemicals. If you have pets or young children at home, look for an air purifier with activated carbon to remove odors from the air. Not only will your air be completely fresh and clean, it will also smell perfect.
Electronic precipitators
The second most common type of air purifier, electronic precipitators draw air through an electrical field and use the electric charge to capture and trap particles on charged metal plates or filters. Some electronic precipitators use a fan to circulate more air at a time. These air cleaners release a small amount of ozone into the air, which is an important consideration if you use the unit in a small room.
Ionizer purifiers
Both filtered cleaners and electronic precipitators can have built-in ionizing circuitry. Ionizers discharge electrons into the air, forming negative ions by attaching themselves to air molecules. The negative ions attract dust and pollen particles to form larger particles that are more easily trapped by filters. An ionizer helps the air purifier work more efficiently. However, the ionized particles may also attach themselves to upholstery, drapes and carpets, increasing the need for vacuuming.



When choosing the best filter, remember to make sure you get a filter strong enough to fit your room.   If your unit is too small, it will work harder and be detrimental to the overall performance.  Make sure you place the filter in the room of your home where you spend most time.  If you want to be fully efficient, have one in your livingroom, bedroom and even basement for clean air no matter where you are. 

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