Frequently Asked Questions
Point of use systems treat water at a specific outlet, such as a drinking tap or appliance, while point of entry systems treat all water entering a building or facility at the supply line. Both approaches use activated carbon filtration to remove contaminants, with carbon grade and system design selected based on the application and target contaminant profile.
Puragen’s POU and POE carbons are effective at removing chlorine, chloramine, taste and odor compounds, PFOS/PFOA, pharmaceuticals, dissolved VOCs, pesticides, herbicides, geosmin, and disinfection byproducts including trihalomethanes and haloacetic acids. Carbon selection is tailored to the specific contaminant profile and performance requirements of each system.
Puragen supplies fine-grade granular activated carbon (GAC), including acid-washed and micro-GAC variants, as well as powdered activated carbon (PAC) for batch processing applications. Micro-GAC grades are specifically suited for incorporation into solid carbon block filters commonly used in POU systems.
Puragen’s POU and POE solutions are designed to support compliance with standards including the WHO Drinking Water Guidelines, EU Drinking Water Directive, and EPA maximum contaminant levels (MCLs) for VOCs and disinfection byproducts. Carbon type and system configuration are selected to meet the specific regulatory requirements applicable to each installation.
Puragen takes a long-term partnership approach that covers carbon engineering, analytics, fixed filter services, and integrated logistics across the full carbon lifecycle. This includes supply, carbon exchange, reactivation where applicable, and ongoing system support to ensure consistent filtration performance.