What's the difference between an activated carbon fiber felt and an activated carbon sponge?Activated carbon fiber felt and activated carbon sponge belong to activated carbon products, which have many USES in air purification.The adsorption of activated carbon we must have some understanding, in the industrial treatment of odor, toxic, harmful aspects, will choose activated carbon adsorption.So what's the difference between an activated carbon fiber felt and an activated carbon sponge?Activated