Coolpex is a brand that manufactures water purifiers for home and office use. Coolpex water purifiers use a multi-stage filtration system that includes a combination of activated carbon, sediment filters, and reverse osmosis technology to remove impurities and contaminants from water.The Coolpex water purifier is designed to provide safe and clean drinking water by removing impurities such as bacteria, viruses, cysts, and heavy metals from water.