{"product_id":"vivosun-d4-4-ac-inline-fan-4-inch-195-cfm-quiet-2500-rpm-ventilation-for-grow-tents","title":"VIVOSUN D4 4\" AC Inline Fan 4-inch, 195 CFM — Quiet 2500 RPM Ventilation for Grow Tents","description":"\u003cp\u003e\u003cstrong\u003eThe VIVOSUN D4 4\" AC Motor Inline Fan delivers up to 195 CFM of targeted airflow in a compact, quiet package ideal for ventilating grow tents, small rooms, and duct runs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and purpose-built, this 4-inch inline blower combines a 2500 RPM motor with an aero-optimized impeller to move air efficiently while minimizing noise and heat. The ETL-listed motor includes automatic reset protection and a flame-retardant junction box, making it a practical choice for continuous ventilation in horticulture setups, workshops, and small HVAC tasks. Its removable housing and simple flange connections make installation, cleaning, and maintenance straightforward.\u003c\/p\u003e\n\n\u003ch3\u003eHow much airflow and performance can I expect from the D4 fan?\u003c\/h3\u003e\n\u003cp\u003eThe D4 model produces up to 195 cubic feet per minute (CFM) at peak speed, powered by a 2500 RPM AC motor that sustains steady ventilation through 4-inch ducting. It is efficient for compact environments where consistent air exchange is needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePeak airflow: 195 CFM for effective ventilation\u003c\/li\u003e\n  \u003cli\u003eMotor speed: 2500 RPM for sustained performance\u003c\/li\u003e\n  \u003cli\u003e4-inch duct size compatibility with common grow tent hoses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the fan run quietly and stay cool during continuous use?\u003c\/h3\u003e\n\u003cp\u003eThe fan uses a flow deflector and streamlined impeller design to reduce turbulent noise, delivering operation around 30 dB—comparable to a quiet room. The motor includes an automatic reset to guard against overheating, and the junction box is made from flame-retardant materials for added safety.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNoise level about 30 dB for low-disturbance use\u003c\/li\u003e\n  \u003cli\u003eAutomatic reset motor protection prevents overheating interruptions\u003c\/li\u003e\n  \u003cli\u003eFlame-retardant electrical box for enhanced safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is installation and maintenance for this inline blower?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: both intake and exhaust ends have flanges with locking tabs for secure hose attachment, and the 5.9-foot power cord gives flexible placement. The housing, impeller, and blades are removable, letting you clean or service the fan without special tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlanged ends with locking tabs for quick duct coupling\u003c\/li\u003e\n  \u003cli\u003e5.9-foot cord for flexible plug positioning\u003c\/li\u003e\n  \u003cli\u003eDetachable housing and impeller for easy cleaning and service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere is this inline fan most useful in a home or grow setup?\u003c\/h3\u003e\n\u003cp\u003eThe VIVOSUN D4 is sized for small- to medium-scale ventilation tasks: ideal for single grow tents, small rooms, basements, bathrooms, or kitchen exhaust where space and noise matter. It improves air circulation, helps manage humidity and temperature, and reduces stagnant air pockets.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWell-suited to 4-inch ducted grow tent systems\u003c\/li\u003e\n  \u003cli\u003eEffective for small room or basement ventilation\u003c\/li\u003e\n  \u003cli\u003eHelps control humidity, odors, and heat build-up in confined spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: growers, hobbyists, and homeowners who need an efficient, low-noise inline fan for compact duct runs. Choose the VIVOSUN D4 if you value a balance of solid airflow (195 CFM), quiet operation, safety features, and easy installation and maintenance in a 4-inch form factor.\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: Is the VIVOSUN D4 compatible with standard 4-inch ducting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The D4 is designed for 4-inch duct and uses flanged ends with locking tabs for secure hose attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How loud is the VIVOSUN D4 during normal operation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Typical operation is around 30 dB thanks to the flow deflector and optimized impeller design.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":56831930335572,"sku":"B01M7S46YZ","price":69.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/vivosun-d4-front-view.jpg?v=1787022410","url":"https:\/\/gardenluxe.co.uk\/products\/vivosun-d4-4-ac-inline-fan-4-inch-195-cfm-quiet-2500-rpm-ventilation-for-grow-tents","provider":"Gardenluxe Uk","version":"1.0","type":"link"}