Quiet Operation and Powerful Ventilation: With a PWM-controlled motor and mixed-flow design, the Mars Hydro 4'' inline fan delivers airflow up to 205 CFM and operates quietly
Keeps the Air Fresh: The filter core is made of activated carbon imported from Australia, bringing 100% fresh air into the grow room and eliminating bad odors, harsh tastes, and particles.
Intelligent Control: High/low temperature/humidity sensor will automatically alert by sensor probe. Controller lockout feature to prevent accidental triggering. Automatic control of fan on/off and speed to achieve TEMP/HMD settings.