ZeoFill is made out of a 100% natural resource from the earth. It is different that any other infill because ZeoFill is a negatively charged honey-combed molecular structure which absorbs the urine like a magnet and prevents the ammonia from forming a gas which is the main cause of smell. ZeoFill due to its ability to hold onto gases, prevents the gas from escaping for long periods of time making ZeoFill the better choice infill when it comes to dog deodorizer. For years there has been a struggle for pet owners to decide if artificial grass is beneficial for their dog. Since majority of dogs have accepted fake grass as their bathroom, their owners had to water down and flush out the urine bacteria from the turf. Many turf manufacturers have made antimicrobial pet turf to resist the bacterial ammonia from adhering to the turf fibers. Silica sand would hold ammonia urine resulting in a great deal of smell.