According to the performance of the gas mask, the pore size distribution of activated carbon must be mostly microporous, so that it can be more suitable for adsorbing substances with small molecular diameter (toxic gas). If the pore width of the adsorption pore of activated carbon is smaller than the critical molecular diameter of the adsorbate, it belongs to Invalid pores, but too wide pores can only function as diffusion channels. Therefore, only the critical molecular diameter of the adsorbate is smaller than the pore width, and it cannot exceed a certain size requirement (according to various types of anti-virus) to achieve effective adsorption.

There are many types of coal-based activated carbon for clean water. The most commonly used ones are coal-based columnar activated carbon, coal-based granular activated carbon, coal-based powdered activated carbon, and coal-like spherical activated carbon.

Following the increase in environmental pollution, water use has been affected to varying degrees. In addition, the environment varies from place to place, making the water content of the day different. The use of "odor" in daily water, especially in drinking water, has become the cause of many areas plaguing residents. Honeycomb activated carbon manufacturers will handle this problem for us.

The shell activated carbon is a porous carbon material made of carbon-containing organic matter through carbonization and activation process. It has good selective adsorption force and is widely used in decolorization, water purification and other fields. It is an important chemical product in the national economy. First, the function of the shell activated carbon is extremely large.