This study investigates the disposal behavior of individuals during the COVID-19 pandemic, explicitly focusing on the environmental impact of disposable facemasks. As facemask usage surges, concerns about improper disposal practices rise. The research aims to fill the knowledge gap regarding the behavioral factors influencing facemask disposal. The study employs a cross-sectional predictive research design, sampling participants from the Philippines using stratified and random sampling. Utilizing a comprehensive survey, the "Facemask Disposal Scale," and the adapted "Environmental Consciousness Scale," the research explores the predictive role of environmental awareness in facemask disposal. Quantitative analysis reveals a weak positive correlation between environmental awareness and disposal behavior. Significant differences in disposal behavior based on socio-economic status and educational attainment are identified. The study emphasizes the complexity of disposal behavior, highlighting the need for further research to inform interventions and policies promoting responsible facemask disposal for public health and environmental preservation. Keywords: Facemask Disposal Behavior, Environmental Consciousness, Socio-Economic Status, Disposal Awareness