The CLOUDLINE H4 is a humidity-proof inline fan engineered specifically for mushroom cultivation and other high-humidity grow environments. Its IP65-rated housing protects against moisture, dust, and debris, ensuring reliable operation even in harsh conditions. Powered by an energy-efficient EC motor with PWM control, it delivers quiet, consistent airflow to maintain proper humidity, CO₂ levels, and fresh air exchange. The included 10-speed controller allows precise adjustment for any growing stage, while dual ball bearings and a mixed-flow design ensure smooth performance and long-lasting durability. Perfect for grow tents, mushroom fruiting chambers, and indoor cultivation spaces that demand stable, clean airflow. Key features • Designed for mushroom cultivation and high-humidity grow environments• IP65-rated housing resists moisture, dust, and debris• EC motor with PWM control runs quietly and energy efficiently• 10-level speed controller for precise airflow management• Mixed-flow design maintains airflow even in restricted spaces• Dual ball bearings allow horizontal or vertical mounting• Detachable motor box for easy cleaning and maintenance Applications • Mushroom grow tents and fruiting chambers• Indoor grow rooms requiring humidity and CO₂ control• High-moisture spaces such as greenhouses or wet cultivation areas• Fresh air exchange for home grow tents and controlled environments• Ventilation in restricted-airflow setups Product specifications Specification Details Manufacturer AC Infinity Inc. Product Name CLOUDLINE H4 Model AI-CLH4 UPC 819137024595 Duct Size 4" Fan Dimensions 7.48 x 11.89 x 6.93 in (19.0 x 30.2 x 17.6 cm) Mounting Hole Distance 3.15 x 2.36 in (8.0 x 6.0 cm) Screw Hole Size Ø 0.197 in (0.5 cm) Cord to Controller 72 in (6 ft) Cord to Plug 72 in (6 ft) Controller Dimensions 3.34 x 2.95 x 0.51 in (8.5 x 3.6 x 1.3 cm) Airflow 212 CFM Noise 27 dBA Max Speed 3000 RPM Static Pressure 324 Pa Voltage 100–240V AC Frequency 50/60 Hz Max Power Draw 35 W Average Power Usage 18 W Current 0.55 A Power Connector US Plug (NEMA 5-15 Type B) Operating Humidity 35–95% RH Operating Temperature 32–140°F Ingress Protection IP65 Bearings Dual ball Mounting Positions Horizontal or vertical Life Expectancy 67,000 hours What’s included • CLOUDLINE H4 inline fan• 10-speed controller• Mounting hardware• Power cords
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