EFFECTIVE VENTILATION: Powerful blower with a fan speed of 2300 RPM for an air flow of 190 CFM. Moves air through your target location efficiently for optimal ventilation SUPERIOR CARBON FILTER: 1050+ RC 48 Australian Virgin Charcoal Bed. Dimensions: 4" x 14" EFFECTIVE ODOR CONTROL: The carbon filter eliminates some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room. STURDY DUCTING+ 2 Stainless Clamps: Strong, flexible steel wire supports heavy duty triple layer duct walls.PET core is sandwiched in layers of fire-retardant aluminum that can handle temperatures from -22 to 266 Fahrenheit. ULTRA RELIABLE & ACCURATE THERMOMETER & HYGROMETER: are able to quickly report measurements every 10 seconds and has a wide measurement range of 14? to 122??-10?~50?), with a temperature accuracy range of around ±0.1? (±0.1?).Humidity sensor measures humidity from 10% to 99%, humidity accuracy range around ±5%.