Once  smoker  quits  smoking,  they  need  to  undergo  a  proper exercise program to restore their pulmonary function and the results of which have already been proven. Respiratory PNF has been seen to have positive effects on PFT in normal population as well as in patient population in terms of reducing respiratory rate and heart rate, improving oxygen saturation and diaphragmatic muscle function, facilitation of respiratory muscles. Smokers also have reduced PFT values but there is no research available which shows the relation between smokers and respiratory PNF. Therefore this particular research was undertaken to see if respiratory PNF has any positive effect on smokers in terms of pulmonary function values. Pre–test post–test experimental study design. To see the effect of respiratory proprioceptive neuromuscular facilitation on PFT in smokers. 30 male smokers in the age group 25–35 years were considered for present study. Measurement of baseline parameters of PFT were compared with post test PFT values at the end of study. Intergroup comparison of pre and post PFT parameters shows significant changes (p<0.05) for the following parameters; TV(Tidal Volume), IRV(Inspiratory Reserve Volume), ERV(Expirator Reserve Volume), %FVC(Forced vital capacity) for the experimental group. The results of the study have shown that when the experimental group is compared with the control group, significant improvement is seen in TV, IRV and FVC% ,since majority of parameters shows improvement therefore, Experimental Hypothesis stands accepted for TV, IRV, and FVC % though ERV, FEV1 and FVC did not show any significant changes.