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Air is a mixture of different gases with Nitrogen as the major component having a concentration of 78.09% and oxygen 20.95%. The remaining 0.96% comprises of argon, carbon dioxide, and other gases. Air also contains water vapors. All of these gases are present in the air in harmless concentrations. Due to human activity or natural processes such as fires, the concentration of the harmful gases ...

Air filters are an integral part of all modern ventilation systems, preventing unwanted dust and other particles from entering the ‘clean’ environment of your home, office, or car. The designs and technology behind them have been the subject of constant improvement, providing filtration of ever-smaller particles, removal of noxious smells, and improving the overall turnover of air within the sy...

What is air pollution? Air pollution is defined as the presence in the outdoor or indoor air of harmful substances at concentrations above their natural levels, which affect humans, animals, plants, and materials 1. There are many harmful substances entering the environment: sulfur and nitrogen oxides (SOx and NOx), volatile organic compounds (VOCs), particulate matter (PM), which are the tiny ...