There are several different types of air purifier for the home and it pays to know which is which before investing in one. Room air cleaners or air purifiers work by drawing air from the room into the system via an internal fan. The air is then filtered and cleaned and released back out into the room.
What is the Best Air Purifier for the Home
The first type contains HEPA filters, which can effectively get rid of 99.97% of all particulate matter in the air such as dust and pollen. HEPA filtering technology is one of the best air purifying technologies currently available. The only slight downside with air purifiers that use HEPA filters is that they need to have their filters replaced regularly in order to remain effective.
The next type of air cleaner uses electrostatic or electronic systems. These air purifiers do not have any filters that need replacing, but do have charged plates that need to be washed occasionally in order to remain effective.
Both HEPA filters and electrostatic air purifiers with HEPA are able to control dust and other airborne particles effectively but they cannot eradicate odors or other chemicals on their own. To be able to do this, an air cleanser must have some form of activated carbon or UV purification system.
How Does an Air Purifier for the Home Work
Before purchasing an air purifier for the home, it is important to know how the actual system works and what it is capable of. Ideally, you should choose an air cleaner that eliminates both particulate matter and potentially dangerous chemicals and odors from the atmosphere To do this, look for an air purifier that contains either activated carbon or a UV purification system. You should also make a point of finding out the power of the machine that you intend buying and its general effectiveness.
Both HEPA filtering and electrostatic air purifiers come in ranges of prices with price often being a good indicator of the quality of the product that you are buying. That is not to say that a smaller unit may not prove to be a quality product but with a lower price tag.
Some of the more high-end air purifiers have what are known as a pre-filter as well as HEPA filtering. These air purifiers give extended life to the HEPA filter by removing some of the larger particulate matter before it can contact the HEPA filter therefore extending it's useful life.
In order to remain effective, the pre-filter should be cleaned on a regular basis to clear dust build up which will otherwise reduce the performance of the air purifier.
Efficiency is an important consideration when purchasing an air purifier. Even though a HEPA filtering can remove 99.97% of particulate matter such as dust, that is of little help if the actual air purifier is only cleaning a fraction of the atmosphere in the room.
To ensure that the air purifier filter you purchase does the job that you want it to, you should find a manufacturer who clearly states exactly how much of the air gets cleaned and also can demonstrate this is the case.
It is helpful to find a table of air cleanser comparisons, where different brands and different models of air cleaner are compared independently. This will go along way in helping you choose an air purifier for the home that actually works. A search on the Internet or through a consumer magazine will probably be your best bet, especially if the source can tell you exactly where the independent air purifier tests were carried out.