Ultraviolet Light Purification Systems(UVL) are very effectual in destroying contaminants that pass by them. They’ll eradicate biological growths, both microbial and bacterial, but UVL systems have absolutely no impact on dust, pet dander or other irritants .
In most residential cases, an HVAC company will install the UV light near the coils to prevent mold or bacteria growth as air passes through. Since all of the air passes through the coils, this also kills growths in the air. UV lights are particularly effective in humid climates, where evaporator coils can easily get wet.
An electrostatic air filter collects particles on the principle that the filter is charged one way and the dust particles are charged the other way, causing the dust particles to stick to each other. (opposites attract).
All physical objects are made up of atoms. Inside an atom are protons, electrons and neutrons. The protons are positively charged, the electrons are negatively charged, and the neutrons are neutral. Static electricity is the result of an imbalance between negative and positive charges in an object.
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