Submicron water filter cartridges are designed to filter out extremely small particles and contaminants from water, typically with a size range of less than 1 micron. These cartridges are used when fine filtration is necessary to address contaminant that are smaller than what standard filters can effectively capture, which include sediment, turbidity, bacteria, viruses and some colloidal particles. Submicron cartridges use specialised filter media, such as membrane, fibres, or other materials that can trap particles on a molecular level, resulting in higher filtration efficiency. These filters are commonly used in applications where bacterial and viral removal is critical, such as healthcare settings, food production, and areas with poor water quality. Submicron filter cartridges come in various pore sizes, typically ranging from 0.1 to 1 micron, with a membrane with microscopic pores to physically block particles from passing through.