Usage Tips: This USB adjustable speed welding fume absorber helps maintain a clean workspace by removing harmful fumes. It features adjustable speed settings, a durable plastic construction, and includes ducting for efficient smoke extraction. Ideal for amateurs, DIY enthusiasts, and professionals using soldering irons or other fume-generating tools. Suitable for use in kitchens, bathrooms, or workshops to improve air quality. Effective for both small and large projects, helping to maintain comfort and productivity. Compatible with 8cm diameter ducting. (Note: Fan only, duct not included.) Power supply: USB 5V Power: 5W Noise level: 50-70 dB(A) Product use precautions: 1. Use a power source with 5V/2A or higher, such as a compatible power bank or phone charger. Insufficient power may result in weak motor performance or failure to start. 2. Do not insert foreign objects into the rotating fan to avoid damaging the blades. Color: Black Material: Plastic + Metal Package Contents: 1 x USB Fan Note: Light reflection and differences in display screens may cause slight variations in color between the product and the image. Measurement may vary by +/- 1-3 cm.