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🎯 Boost your airflow, not your noise!
The VIVOSUN 4" Inline Booster Duct Fan combines a powerful 106 CFM airflow with whisper-quiet operation under 28dB, all controlled via an adjustable speed dial. Its compact design fits tight spaces, while durable steel housing and permanently lubricated bearings ensure long-lasting, maintenance-free performance. Perfect for enhancing ventilation in bathrooms, basements, kitchens, attics, and grow tents.
























| ASIN | B0BVPW3B35 |
| Air Flow Capacity | 106 Cubic Feet Per Minute |
| Blade Length | 4 Inches |
| Blade Material | Plastic |
| Brand Name | VIVOSUN |
| Collection Name | 換気扇。 |
| Color | Black |
| Control Method | App |
| Controller Type | Pull Chain Control |
| Customer Reviews | 4.1 4.1 out of 5 stars (401) |
| Electric Fan Design | Blower |
| Finish Type | Metallic |
| Included Components | Inline Duct Fan with Speed Controller |
| Indoor Outdoor Usage | Indoor |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 9.9D x 9.9W x 15H cm |
| Item Type Name | Inline Duct Fan with Speed Controller |
| Manufacturer | VIVOSUN |
| Material | Alloy Steel |
| Model Name | VSV-IFB4 |
| Model Number | VSV-IFB4 |
| Mounting Type | Ceiling Mount |
| Noise Level | 28 Decibels |
| Number of Power Levels | 2 |
| Number of Speeds | 2 |
| Part Number | VSV-IFB4 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Exhausting |
| Room Type | Bathroom |
| Size | 4”& Speed Controller |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Low Noise |
| Specification Met | HVAC |
| Speed | 2990 RPM |
| Style | Modern |
| Switch Type | Push Button |
| Theme | 家庭用換気。 |
| Unit Count | 1.0 Count |
| Wattage | 14 W |
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