In addition to physical adsorption, coconut shell activated carbon has three major functions: chemical decomposition and catalytic degradation. Its chemical decomposition is mainly the reaction between the chemical components of the material and pollutants to form solid components and harmless gases. Coconut shell activated carbon can also be chemically decomposed, such as adding some catalysts such as copper, silver, titanium and other precious metals, to help decompose harmful gases such as sarin, formaldehyde, benzene TVOC and other poisonous gases, so it is known as the "poison gas buster" .

During the use of coconut shell activated carbon, the adsorption effect will continue to weaken. When it weakens to a certain extent, the filter will become useless. The pore diameter of activated carbon used to purify the air must be slightly larger than the diameter of toxic and harmful gas molecules in order to have the adsorption effect on toxic and harmful gases.

Then the reason for the usage time of air purifying activated carbon is: the total amount of harmful substances in the environment and the desorption effect.

The quality effect of coconut shell activated carbon on adsorbing harmful gases can reach its own quality. Therefore, in the air in domestic spaces, the quality of harmful gases is far less than the amount of coconut shell activated carbon used.

Therefore, as long as the coconut shell activated carbon is often placed in the sun to dry, the coconut shell activated carbon can be used permanently. However, dust clogging the pores of coconut shell activated carbon will also reduce its adsorption effect. So you still have to pay attention to how to use it.

Coconut shell activated carbon adsorption function:

1. Coconut shell activated carbon adsorption capacity: The maximum amount of pollutants that can be adsorbed by a unit of coconut shell activated carbon is called the adsorption capacity. The adsorption capacity of different materials is also different; the adsorption capacity of the same material for different gases will also be different; the adsorption capacity will also change when the temperature and background concentration change.

2. Coconut shell activated carbon retention time: The time that air is retained in the coconut shell activated carbon layer is called the retention time. The longer the residence time, the better the adsorption effect. In order to ensure sufficient retention time, the carbon layer must be thick enough and the filtration wind speed must be low enough.

3. Use time of coconut shell activated carbon: The new coconut shell activated carbon has better adsorption effect, but the adsorption effect will continue to weaken during use. When the harmful gas under the filter approaches the allowable concentration limit, the filter will be invalid. The usage time before invalidation is the usage time, also called the effective protection time.

4. Selectivity of coconut shell activated carbon: Generally speaking, the gases that are easily adsorbed in physical adsorption include: gases with large molecular weights, gases with high boiling points, and volatile organic gases. If coconut shell activated carbon is chemically impregnated, it can also eliminate gases that are usually difficult to deal with, or have a significant adsorption effect on a gas.