Description Ducting Material: High-quality aluminum (High Temperature Resistant & Corrosion Resistant & Long Lasting); Clamps Material: Stainless steel (Rustproof & Corrosion Resistant & Heavy Duty). Ducting Feature: Three-layer Thickness (Aluminum Foil PET Aluminum Foil): Flame-retardant coating. Thermal Endurance: Temperature range from -22 to 266 Fahrenheit. EFFECTIVE VENTILATION: Powerful blower with a fan speed of 2550 RPM for an air flow of 390 CFM. Moves air through your target location efficiently for optimal ventilation SUPERIOR CARBON QUALITY: Made of imported Virgin Australian activated charcoal, delivering 100% filtered airflow. 1050 RC 48 carbon captures three times more air contaminants than average due to optimal surface area per carbon particle. EFFECTIVE ODOR CONTROL: Eliminate some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room.