Full blackout curtains offer 100% shading to effectively block UV rays while providing superior sound and heat insulation compared to regular curtains. Ideal for hot summer days, they help reduce indoor temperatures by blocking external heat radiation. Additionally, these curtains feature waterproof properties and support permanent flame-retardant treatment, meeting B1 domestic standards, European BS5867, American NFPA701, and international cruise ship fire safety standards, making them durable and safe for various environments.