This article presents a comparative study on nanofibers over nonwoven substrate. Here we used two different polymers named as thermoplastic polyurethane (TPU) and polyvinylidene fluoride (PVDF) for comparing their filtration efficiency and Dimethylformamide used as solvent and DMF polypropylene PP as substrate in the electrospinning machine. Air filtration requires efficient removal of large and small particles at high air flow rates. Fibers in the nano range, in comparison with larger ones, are well known to provide better filter efficiency at the same pressure drop in the interception and inertial impaction regimes. After making the materials, tests are evaluated by different testing machines. The results showed the air permeability differences, air filtration efficiency of the polymers. In this paper, we suggest solvent bonding method for nanofibrous filters, as an alternative for the traditional thermal and pressure bonding methods used until now.