Everything we do, be it in our residences or work areas, always has its own outcomes. Air pollution is one of the most disturbing problems we have. Dust,smoke,virues and spores from fungi are some of the air contaminants. Failure to eliminate the pollutants from the air lead to adverse effects like; diseases of the breathing system and damage to the layer in the atmosphere called O-Zone layer.
A device used to remove pollutants from the air is called an air purifier. The benefits of using air purifiers are enjoyed largely by people with allergies. Presence of contaminants in the air may worsen the conditions of such people. There are air purifiers made specifically for industries whose wastes include dust or smoke. Safety is thereby increased in these industries.
The use of air purifiers has been known to date back to the nineteenth century. The efficiency of the cleaners back then was low. Technological advancements have seen tremendous improvement made on the working of the purifiers. Depending on whether they are to be used in homes or industries, air cleaners come in different sizes. What determines how complex a purifier is the kind of the contaminants to be targeted and the magnitude of pollution. The working mechanisms of the air purifiers is what we will focus on in this discussion.
Cosiderations have to be made concerning three things before opting for a purifier. Air purifier manufacturers lure their consumers by use of these three things. The amount of noise released by the air purifier is the first thing one considers. Noisy air purifiers are uncomfortable to use however effective they may be.
Another thing to consider is how frequent the purifier needs replacement of parts. Lastly, consider how much power the air cleaner consumes as it works or on standby.
Purifiers using heat to clean the air are called thermo air cleaners. Working mechanism involves heating air passing through them. Before passing out, air contaminants like bacteria, viruses or fungi are killed in the purifier. Before releasing air to the atmosphere, it is cooled slightly. As the air is cooled, dust particles not affected by the heat are settled and therefore do not flow out.
Next we have the ultraviolet air purifiers. They have systems equipped with ultraviolet rays. Air is freed from contaminants by subjecting the contaminants to rays that make them inert. The filter makes air clean by sterilizing the pollutants and making them safe.
Next we have the High Efficiency Particulate Arrestance air purifiers. These use the simple trapping mechanism. It is mostly used to clean air contaminated by physical contaminants like dust. Particles like dust and dust are trapped and do not leave the cleaner. Parts of the air purifier may require regular servicing though this depends on how polluted the air is. An advantage is that it can be used together with the other purifiers.
Lastly, the other common type of air purifier is the activated carbon air cleaner. Its working applies adsorption to clean air. Gaseous contaminants are adsorbed and translated to solid materials. The HEPA air purifier can be used together with this air cleaner.