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Although
there are
various versions of air-purifiers available today in the market
including the HEPA purifier and the UV air-purifier, but there are only two
basic kinds of electronic air-purifiers.
These are
the negative ion generators and the ozone air-purifiers. We will discuss the
functioning and effectiveness of both the varieties in the following
section.
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Recently, air
purifiers are coming with indicator lights that will notify the user that it is
time to change the filter inside. Previously one always had to keep an eye for
that, and the replacement was based much on guess work. The average domestic
owner doesn't have the expertise to understand if it is time to replace the
filter. With indicator lights, that shouldn't be a problem anymore.
Ionic Air Purifiers
The basic principle of these airpurifiers is based on the concept of static
electricity. What it does is while the air passes through the purifier it
charges the air negatively by releasing negative ions. Now these negative ions
come in contact with the positive ions present in the air. These would include
the regular pollutants like dust, bacteria, pollen and chemicals. These remain
suspended in the air and we breathe them in along with the air. Now the negative
and positive charges immediately bond together and fall to the ground. This is a
very simple and basic method, but at the end of the day it works.
In the more advanced ionic air purifiers there are plates inside the purifier
which are negatively charged. When air passes through the purifier, the
positively charged particulates are attracted by the plates and are collected.
So the floor remains free of the pollutants.
Ozone Air-Purifiers
The second variety of electronic air purifier is the ozone air-purifier.
However, this variety of air purifier has been embroiled in much controversy and
there is little indication that the controversy is going to die down anytime
soon.
Ozone air purifiers actually release ozone in the air. The principle is that
ozone is composed of three atoms of oxygen of which the third atom is a free
radical and readily reacts with any organic substance. The manufacturers' theory
is that the free radical reacts with the organic substances in the air, thus
decreasing pollution. And in the process the two other atoms are now released as
oxygen which further cleanses the air.
The problem is that this free radical can actually react with the organic
substances inside our body and this can be very harmful for our health and can
seriously damage our lungs. So according to some, ozone air purifiers do us more
harm than they aid us. There is definitely a need to look into the matter more
seriously and there should be more research conducted before we can come to a
conclusion about this variety of air-purifier.
by : Jason
Uvios
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ORDER
NOW ,
2009 |
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