![]() ![]() This involves the energy from a UV light source colliding with a metal surface, irradiating it, and causing it to “ photo-electrically eject electrons“. However, the quantities of anions produced in this way are low when looked at over a certain time period.īy adding the metal target structure, we move from ionization to a process called the photoelectric effect. These electrons then collide with other air molecules, causing them to become negatively charged. The energy of the UV light causes some air molecules to lose electrons (becoming positively charged). Technically, the UV light will cause ionization of air directly and, indeed, it does so in the Reme Halo cell. The UV light provides the energy source, the hydrate of the catalytic surface traps ambient moisture from the air, and the metal catalytic target structure is a rich source of electrons. The chemical reaction in question is a process known as photohydroionization and it requires an appropriate energy source, moisture, and a material that will release electrons. First, let’s look at the chemical reaction by which they are produced. The way in which these anions clean the air is described later on in the article. Reme Halos purify the air by producing ions, specifically, negatively charged ions (anions). The broad spectrum UV light is paramount to the mechanism of the Reme Halo and it is positioned so that it will shine onto as large an area of the catalytic surface as possible.Īn ultraviolet light source is used to directly ionize air molecules, which is a process that will be described further below. A catalyst is something that causes a chemical reaction to occur more quickly. It is coated in a hydrophilic agent or hydrate to form a catalytic surface. The catalytic target structure is a metal plate composed of titanium and silver, copper, or rhodium. A catalytic target structure with a catalytic surface.The Reme cell side of the unit is inserted into the HVAC system and secured there with the mounting plate (the power supply is outside of the duct). This is very convenient, particularly considering where the Reme Halo is placed. The power supply has an adjustable output and allows the unit to operate without having to plug into an electrical outlet. A Reme cell (also known as a photohydroionization cell).Was this helpful? Components of Reme Halo ![]()
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