Microplastics - tiny plastic particles under five millimeters - are a growing environmental and health concern due to their widespread presence in water, food, and air. Conventional water treatment struggles to remove them effectively, but reverse osmosis (RO) filtration offers a highly efficient solution by using ultra-fine membranes that block over 99% of microplastics through physical filtration, electrostatic repulsion, and high-pressure forcing. Despite requiring regular maintenance and higher upfront costs, RO systems provide reliable long-term removal of microplastics and other contaminants, making them essential for ensuring clean drinking water and protecting public health from microplastic pollution.