How much do you know about Air purification,
Air purifier , also known as “ air cleaner ” air refresher, is the ability to adsorption, decomposition or transformation of various air pollutants (generally including dust, pollen, odors, bacteria, allergens and decoration pollution formaldehyde and the like, etc.) effectively improve air cleanliness products. Origin of the air purifier Air purifier originated in the use of fire, in 1823, John and Charles Dean invented a new type of smoke guards, firefighters can avoid smoke when fire attack. In 1854, a man named Johns Rittenhouse people made new progress on the basis of their predecessors invention: through several attempts, he learned that the air filter is added charcoal to filter out harmful and toxic gases. During World War II, American scientists developed a HEPA filter, once very popular. Air purifier model Now, air purifiers have a variety of different design approach. From the ...