This work presents a thorough evaluation of the adsorption properties of template free synthesized ZSM-5 for the removal of organic pollutants in air. The ZSM-5 material has been prepared by the hydrothermal synthesis method using ZSM-5 seed assistance, instead of organic template. This material has been compared with the ZSM-5 prepared by using TPAOH as an organic template. The influence of the seed assisted method on the structure, textural properties and adsorption capacity has been investigated. Benzene, toluene, ethylbenzene and xylene (BTEX) have been used as model organic pollutants. The adsorbents made have been characterized by BET surface area, XRD, SEM, TPD and FTIR spectroscopy. The characterization reveals that seed assisted organic template free ZSM-5 synthesis method is a suitable hydrothermal ZSM-5 synthesis procedure, for obtaining a well MFI structured particles with BET surface area, porosity and crystallinity. The results presented in this work show that nature of organic pollutant and ZSM-5 physicochemical characteristics have an influence on the adsorption ability. The template free ZSM-5 shows good agreement with the adsorption ability of ZSM-5 with template, along with the benefit of no calcination after synthesis and less environmental pollution.