360° Flexible Dust Collection Hose with Articulated Dust Collection Arm: This flexible hose is 360° adjustable and can be bent to your needs without requiring a support Industrial Articulated Fume Extractor Hose: Equipped with a detachable stainless steel nozzle, dust collector and cover, it is waterproof and rust-proof and can be used for a long time. The stainless steel nozzle has a handle and the cover can be flexibly adjusted Plastic Welding Fume Extraction Hose: This plastic articulated hose is heat-resistant from -40°C to 100°C and is abrasion-resistant, high-strength, impact-resistant, and pressure-resistant. It is highly flexible and will not shift once positioned Flow Control Valve: The nozzle, dust collector, and hood feature an adjustable valve with three settings: closed, half-open, and fully open, allowing you to adjust the airflow and prevent fume backflow Wide Range of Industrial Applications: Suitable for welding fume extraction, engraving, industrial dust collection, machine cooling, workshop vacuuming, and laboratory ventilation