Double-Layer Thickened Aluminum Foil Hose – High-performance exhaust fan duct designed for superior ventilation in bathrooms, kitchens, and enclosed spaces. Reinforced dual-layer aluminum foil construction ensures durability, heat resistance, and anti-corrosion for long-term use. Flexible yet sturdy design allows easy installation around tight corners without kinking or collapsing. Ideal for connecting exhaust fans, air purifiers, and dryer systems to efficiently remove moisture, odors, and airborne particles. Smooth inner surface minimizes airflow resistance for maximum ventilation efficiency. Lightweight yet tear-resistant material withstands high temperatures up to 120°C (248°F). Fits standard 80mm diameter exhaust systems with airtight sealing to prevent air leakage. Perfect for residential and commercial use in humid or high-odor environments.