{"product_id":"ac-infinity-cloudline-h4-4-inline-duct-fan-212-cfm-ip65-moisture-resistant-with-10-level-speed-controller","title":"AC Infinity CLOUDLINE H4 4\" Inline Duct Fan — 212 CFM, IP65 Moisture-Resistant with 10-Level Speed Controller","description":"\u003cp\u003e\u003cstrong\u003eThe AC Infinity CLOUDLINE H4 is a compact, quiet 4-inch inline duct fan engineered for mushroom growing and humid environments, offering 212 CFM airflow, IP65 moisture resistance, and a 10-level speed controller for precise ventilation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt to move fresh air efficiently in confined, high-humidity spaces, the CLOUDLINE H4 combines a brushless EC motor with PWM control and dual ball bearings to deliver reliable, low-noise performance. Its IP65 rating protects internal components from moisture and dust, making it suitable for grow tents, mushroom racks, bathrooms, or any application where humidity and cleanliness matter. The included speed controller gives growers and hobbyists micro-adjustable airflow to manage temperature, humidity, and CO2 levels without cycling noisy equipment.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the CLOUDLINE H4 keep a mushroom grow room stable?\u003c\/h3\u003e\n\u003cp\u003eThe fan supplies steady air exchange to remove stale air and introduce fresh air, helping to regulate humidity and CO2. Because it runs quietly and can be tuned across ten speeds, it prevents sudden pressure swings that can stress delicate crops.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e212 CFM peak airflow to refresh small to medium grow spaces\u003c\/li\u003e\n  \u003cli\u003e10-level speed controller for gradual airflow adjustments\u003c\/li\u003e\n  \u003cli\u003eLow 27 dBA noise output reduces disturbance to environments\u003c\/li\u003e\n  \u003cli\u003eEC motor and PWM control for consistent, repeatable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the H4 survive humid, dusty conditions commonly found in grows?\u003c\/h3\u003e\n\u003cp\u003eYes—its IP65-rated housing seals the fan against water spray, dust and debris, preserving motor electronics and bearings. The robust construction and dual ball bearings extend service life even under continuous operation in damp settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP65 protection resists moisture and particulates\u003c\/li\u003e\n  \u003cli\u003eDual ball bearings improve durability during prolonged use\u003c\/li\u003e\n  \u003cli\u003eSealed housing minimizes maintenance and cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow quiet and energy-efficient is the CLOUDLINE H4 during daily use?\u003c\/h3\u003e\n\u003cp\u003eThe H4 is engineered for low noise and low power draw: it produces just 27 dBA at typical speeds while the EC motor and PWM input optimize energy consumption. That combination means continuous ventilation without large electricity costs or disruptive sound.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated noise level around 27 dBA for minimal background sound\u003c\/li\u003e\n  \u003cli\u003eEC brushless motor reduces electrical loss and heat\u003c\/li\u003e\n  \u003cli\u003ePWM-compatible drive enables fine speed control and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and control for an inline fan this size?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: the 4-inch duct size fits standard ducting and the fan's compact footprint simplifies mounting inside tents or on racks. The included speed controller provides ten discrete levels so you can dial in airflow without additional controllers or wiring.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDuct size: 4\" to match common flexible and rigid ducting\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions: 6.9 x 11.9 x 7.4 inches for tight spaces\u003c\/li\u003e\n  \u003cli\u003eIncluded 10-level controller for plug-and-play adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The AC Infinity CLOUDLINE H4 is aimed at hobby growers, mushroom cultivators, and anyone who needs reliable ventilation in compact, humid environments. It suits small grow tents, closet-style fruiting chambers, bathroom exhaust upgrades, and any application where quiet, moisture-resistant airflow with precise speed control is required. If you need a compact inline fan that balances airflow, longevity, and low noise while resisting harsh conditions, the H4 is built to meet those needs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What duct size does the CLOUDLINE H4 fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The H4 is built for 4-inch ducting, compatible with common flexible and rigid ducts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the fan come with a speed controller?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it includes a 10-level speed controller for precise airflow adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AC Infinity","offers":[{"title":"Default Title","offer_id":56801476444500,"sku":"B0DHYP3ZQY","price":163.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/ac-infinity-cloudline-h4-front-view.jpg?v=1786742819","url":"https:\/\/gardenluxe.co.uk\/products\/ac-infinity-cloudline-h4-4-inline-duct-fan-212-cfm-ip65-moisture-resistant-with-10-level-speed-controller","provider":"Gardenluxe Uk","version":"1.0","type":"link"}