From the field of agriculture, broiler production, public health and environmental protection in broiler farms point of view, in view of absence studies concerned with the effect of the natural zeolite on the total airborne bacteria concentrations in the indoor air of broiler farms in the Syrian Arab Republic, locally, regionally and globally in summer season. This study was conducted for the first time. By finding new method to control high levels of the air biological contamination in broiler farms. This article describe the effect of three different levels of the Syrian natural zeolite Tz1 (25%), Tz2 (50%) and Tz3 (75%) on the air bacterial load concentrations in broilers farms. And the recommendations needed to further researches in this field, adding different levels of natural zeolite to the broiler.