| Research, testing and experimentation have led many companies to different effective technologies used in their air cleaners. With so many different types of filtering systems and technologies used in air cleaners on the market, it is important for the consumer to know which ones are the most efficient. In order to achieve the clean and safe indoor air that every consumer is hoping for, he or she must be sure to purchase a unit with the correct technology or media.
HEPA technology is one of the most basic yet most effective filtering systems used in air cleaners. A HEPA filter is a medium that is able to eliminate particles in the air that passes through it. The filter can destroy 99.7% of particles that are 0.03 microns in size and larger. This majority of contaminants include most bacteria, dust and pollen. air cleaners that use HEPA filters are good for consumers who suffer from allergies or asthma because they are able to eliminate most triggers in indoor air that can be responsible for attacks. A HEPA filter is pleated and placed inside an air cleaner to remove the particles from the air as it passes through the unit.
Electrostatic technology uses the power of static electricity to eliminate particles from the air. Home air cleaners with electrostatic technology are easy for consumers because there are no filters that need to be replaced. The units use collection plates and an electric charge to attract and trap any particles in the air before it is released from the unit. The particles in the air are given a charge which is the opposite charge of the collection plates present in the unit. The particles are then attracted to the collection plates and exit the airflow once they stick to the plates that will need to be washed about every three months.
Activated carbon is a type of media that is added to many air cleaners to increase their effectiveness. It is usually combined with other minerals such as Zeolite for added efficiency. Activated carbon and Zeolite are used in air cleaners to specialize in eliminating odors and chemical fumes from the air that is taken into the unit. Many air cleaners that don't contain these types of media are not able to help in destroying odors or chemicals from the air.
Some air cleaners are also designed to include an ultraviolet filtering stage. By having the air pass through a UV light, many types of bacteria, germs and allergens are destroyed. The UV light sets off enough power to eliminate and kill these types of germs and allergens before they are released from the unit. This type of technology is perfect for people who have weak immune systems or severe allergies.
Air cleaners can sometimes contain different combinations of filtering systems, media and technologies. In order to choose the right unit for him or her, a consumer should consider which contaminants each filtering system can specialize in removing from the air. The consumer should also be aware of which filtering systems are efficient and effective and which systems have yet to be proven. By choosing air cleaners with efficient filtering systems, consumers will reap the benefits of quality indoor air.
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