Every year, 4 million people die from upper respiratory infections. Mask-wearing is crucial in preventing the spread of pathogen-containing droplets, which is the primary cause of these infections. However, most experiments for evaluating mask efficacy are either expensive and complex or inaccurate. In this work, a novel, low-cost, and quantitative apparatus to visualize, track, and analyze orally-generated fluid droplets is developed. The setup was initially constructed in a dark closet as a proof of concept using common household materials and was subsequently implemented into a portable apparatus. A fluorescence based technique utilizing tonic water and UV dark-light tube lights is used to visualize droplet and aerosol propagation with automated analysis conducted using open-source software. The dependencies of oral fluid droplet generation and propagation on various factors are studied in detail and established using this metrology. Additionally, the droplet size was mathematically correlated to height and airborne time. It was found that the setup is sensitive enough to capture droplets as small as a few microns. The efficacy of different types of masks is evaluated and associated with fabric microstructures; it is found that masks with smaller-sized pores and thicker material are most effective. This apparatus can easily be constructed using materials that total to a cost of less than $60, thereby enabling a low-cost and accurate educational tool for potentially widespread application in classrooms.