The very mention of air pollution makes us think of outdoor air. However, studies show that indoor air is actually more harmful because of tight insulation in most residences. Science has given us a technological solution for this problem, through air- purification devices.
Several advancements have been made in fine-tuning air cleaners. They are increasingly becoming more effective, area specific and provide a better overall performance. There are several types of air cleaning methods that are on today’s market.
Most air cleaners use filters. These units suck air through the filter into a cleaning chamber. The filter helps get rid of all unwanted pollutants like pollen, dust, etc. and then releases clean air. Air filters require cleaning at regular intervals. A cleaner that uses a HEPA [high- efficiency particulate air- filter] filter is recommended for hospitals, as it eliminates very small particles of dust and grime. Theoretically speaking, it has a 99.97% purification rate. This includes the removal of mixtures of solids and liquids in the air. It also benefits asthmatic patients and those who suffer from aerial allergies.
Ionizers are another type of air cleaner. They emit negative ions into the air that attack and neutralize positively charged particles. These particles can then be collected either by a special filter or by your walls, furniture and the floor. However, they neither get rid of odorless gases like carbon monoxide, nor do they help free the air of allergens like animal dander, pollens or dust.
UV lamps help in the extermination of living microorganisms like viruses and bacteria. Ozone generators create ozone that kills germs and breaks down the structure of bacteria and fungus. Air purifiers are also available with carbon filters that clear the air of chemicals, fumes and smoke. They are particularly effective in the removal of tobacco smoke.
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