High Iodine Number: Activated Carbon Filter from ETS

Activated carbon Filters have special properties that allow to remove volatile organic compounds (VOCs), odours, and other gaseous pollutants from the air. It accomplishes this in a way that is different from HEPA that only filter particle pollution from the air.

Why High Iodine Number?

The Iodine number is the most fundamental parameter used to characterize activated carbon performance. The Iodine number is a measure of the iodine adsorbed in the pores of the activated carbon and, as such, is an indication of the pore volume available in the activated carbon of interest. It is further a measure of efficiency level since the higher the iodine number the higher the degree of activation.

What will be filtered out?

Activated Carbon filters work through Adsorption, which is a distinct process where organic compounds in the air react chemically with the activated carbon, which causes them to stick to the filter. The more porous the activated carbon is, the more contaminants will be captured. Due to the high iodine number the ETS activated carbon filter has a high pore volume thus highly efficiently removing:

• Volatile Organic Compounds (VOCs) which are gaseous and hazardous compounds such as formaldehyde, benzene, or other hydrocarbons, which can be found in many products used to build and maintain residential and commercial buildings. Once these chemicals are in confined spaces, they are released or “off-gas” into the indoor air we breathe. They may or may not be able to be smelled, and smelling is not a good indicator of health risk.
• Odours

Like in nature, but x fold more powerful:

TiO2 Photocatalytic Oxidation Filter from ETS

Photocatalytic Oxidation is a process that combines UVC irradiation with titanium dioxide (TiO2) as a photocatalyst which results in a reaction that changes malignant contaminants into wa­ter, carbon dioxide and detritus.

How does it work?

After passing the previous stages of filtration remaining contaminated air will be sucked through the honeycomb chambers of the TiO2 Photocatalytic Oxidation Filter on which backside a powerful UVC lamp triggers the promotion of electrons (e−) from the valence band to the conduction band leaving positive holes (h+) behind. Produced positive holes and free electrons diffuse to the semiconductor surface. The positive holes and electrons at the semiconductor/air interface, forming high reactive hydroxyl radicals and superoxide radicals, which subsequently initiate redox processes leading to the degradation/mineralization of adsorbed organic and inorganic compounds.

In other words Volatile Organic Compounds (VOC), bacteria and viruses will be attacked by free radicals and eliminated.

Nature shows us how it works: Bi-Polar Ionisation

In nature Ions are found in abundance. The highest concentration of bipolar ions are found around moving waters (ocean, waterfalls, thunderstorm etc.). That’s why the human body feels so energized and refreshed in these environments. In a confined room, though, the level of bipolar ions is the lowest, but usually concentration of harmful pollutants (VOCs, Germs, Viruses, Bacteria, etc.) are at their highest. 

How does it work?

The bipolar ion generator in the ETS Air Disinfection System is located in the air outlet duct in which it creates bipolar ions through a high voltage plasma, generated between 2 electrodes, thus simulating the discharge of energy like in a thunderstorm. The charged ions or in other words activated negative Oxygen (O2- and positive Hydrogen (H+) molecules, carried by the air stream travel throughout the air space and attach themselves to airborne pollutants such as dust, mould, pollen and smoke, causing them to gain size and mass, enough that they drop to the floor, or return to the filter,  making them easily cleaned from the air we breathe. Moreover, bipolar ions initiate an oxidation process, which chemically alters the odour molecules (VOCs) and germs. New harmless substances are formed. Activated oxygen damages the cell structure of mould spores as well as bacteria and viruses, so that they become inactive.