Context: As an average normal person spend maximum of its time in his working environment it is major contributor in determining the person’s overall health. A good quality of air is an important factor for normal health of an individual. Aim: To find out immediate effect of Chest Mobility Exercises and Conventional Breathing Exercises on Marble Factory Worker. Settings and Design: The interventional study was carried out in Marble Factories of Abu Road Method and Material: 40 subjects were included in the basis of inclusion and exclusion criteria and divided into 2 groups with 20 participants in each group. One group received Chest Mobility Exercises and other group received Conventional Breathing Exercises. Statistical analysis: Data was analyzed by using SPSS Version 20. Wilcoxon signed–rank test was used for the pre treatment and post treatment comparison within both the groups & Mann–Whitney U test was used for the inter group comparison. Results: Statistically is significant (p<0.05) the result showed high significant difference within & between the two groups. There was more effect of Chest Mobility Exercises compared to Conventional Breathing Exercises. Conclusion: The above study concluded that both the technique showed marked improvement but the Chest Mobility Exercises is more effective for the Marble Factory Workers and it is easy to perform for the participants.