All of us breathe air. Oxygen that is given out by plants is taken in by us while the carbon-d-oxide is taken in by the plants. It therefore becomes imperative that we breathe in pure and uncontaminated air. The state of orderliness in our system is largely dependent on the purity of the air that we breathe in. In earlier times; such a possibility existed with people living long and healthily.

In today's age of industrialization and mechanization pure air has become a rarity, with the atmosphere becoming polluted and contaminated as a result of modern living. But survive we must. That necessity is the mother of invention is an idea that is validated in each era. Man comes out with a marvelous invention to suit the times and the needs impure air is not a problem that is devoid of an answer. Through a device and an arrangement, it is possible to breathe in pure air even though the air around may contain impurities.

Air filters becomes a useful device in the context referred to. Filters are the act or the process of sifting the impurities contained in a mixture while partaking of the pure segment. There are water filters which do the job of separating impurities in water. Filtration is a process towards this objective. The more precise a process is, more the benefits.

Air filters work on this principle and so there are types of air filters corresponding to the degree with which they air in removing the impurities present in the air. They live up to the challenges of ?purifying? the breathed-in air indoors which is more contaminated than the one outside, contrary to common perceptions. The story of ailments and illness starts with the air we breathe in. Outside, the air can be felt to be pure or impure but indoors it is difficult. That is the problem!

However, particles of dust, pollen, bacteria, smoke, smog, pet dander, plant and mold spares are removed. Air filters thus helps in increasing the energy efficiency of the healing system while prolonging its life.

Air pollution is reduced upon adopting the three strategies which are control of the sources of pollution, ensuring adequate ventilation and cleaning indoor air. Air filters does all of this. Air filters can effectively reduce the levels of particulates in the event of someone smoking in the house or in the neighboring apartment. However, tobacco combustion chemical remains.

Air filters also bring in disadvantages. The theory that air filters removes allergy problems is contentious. Persons get relief from asthma by installing air filters in a clean and well-ventilated room is a hypothesis, which is yet to be validated. Often, windows need to be closed. This would result in deprivation of oxygen besides disallowing adequate exchange of air. There can be a possibility of carbon material in some air filters becoming contaminated with mold which when spewed in to the room can worsen asthma and allergy related illness.

The importance of fresh air to our physical and mental health cannot be underscored. Yet opening the windows for letting in fresh air is not always possible. It is here that air filters step in to become a common household feature.