This research centers on an experimental exploration of the atomization performance of both swirl and non-swirl twin-fluid injectors, with an emphasis on enhanced atomization at higher liquid flow rates. In these injectors’ design, atomization is achieved by introducing a substantial volume of air onto a liquid jet within the injector. In the context of swirl-type injectors, the air is introduced through tangential holes into an annular passage, fostering a dynamic interplay. Measurements of size and velocity are meticulously obtained using a precise 2-D Phase Doppler Particle Analyzer system. A significant finding emerged that the Sauter mean diameter of droplets is comparatively lower in the swirl injector in contrast to the non-swirl injector, attributed to the integration of tangential momentum. Meanwhile, the mean droplet velocity remains consistently stable for both injector types. The results suggest that the swirl injector exhibits comparable better atomization characteristics to the non-swirl injector, even when faced with the limitations of a constrained spray angle.