【Can I run it while covered?】Yes, the GUYISS Generator Cover is specifically designed to be used while the generator is running. It features all four sides that roll up and secure with buckle straps, so you can keep it on during operation while allowing airflow. This flexibility is one of the standout features—you can keep it on while running by opening just the exhaust and air intake sides, while keeping the other sides down to shield electronics and plugs from rain. It is also easy to use the generator's operating buttons and link the power cord. Important: Always keep the exhaust side rolled up when running to allow proper ventilation and heat dissipation. 【Dimensions/Compatible Models】The GUYISS 28x20x20 Inch outdoor generator cover fits most 3000–5000W generators. For best fit, measure your generator’s length, width, and height and compare with cover size 28"L×20"W×20"H. It is compatible with Chmpion, Wetinghouse, Durmax, WE N and other brands. Compatible models include Durmax XP4000S, XP4850EH, XP4400EH; WE N 3800/56380i/56400i/56400iX/DF400i/DF400X/56450i/56450iX/56310ic/56310i-RV/DF452ix; W Gen3600 series and more. Adjustable straps and side Velcro allow slight size variations for a tight fit. We offer multiple sizes: 28", 30", 32", 38", to meet different needs. 【Features a Range of Practical Functions】Its key features include: Top-opening design—allows access to the fuel tank for refueling without removing the cover. Ventilation design—ensures airflow to prevent the generator from overheating when covered. Wind-resistant design—features adjustable wrap-around straps, a bottom drawstring, and Velcro fasteners to keep the cover securely in place even in strong winds. Design of Heat-Reflective Coatings—Silver-plated inner lining (210D). The interior silver coating helps reflect radiant heat away from the generator, acting as a basic thermal barrier 【The Advantages of Double-Layer Fabric】It's designed for all-weather protection – Rated for rain, snow, intense sunlight, strong winds, and dust. Why？First, The generator covers while running is made with a double-layer tear-resistant, waterproof Oxford fabric, ensuring that it will be 100% waterproof and more durable – The face fabric used is 900D high grade PU coated waterproof fabric. The lining is made of 210D silver-plated waterproof fabric. Highly efficient waterproof zippers are used on the sides to prevent rain from entering through the seams. Second, Provides protection from sun exposure, helping to reduce fading and wear. 【How do I secure it in high winds?】The GUYISS Generator Cover has multiple wind-resistance features to keep it secure: First, Windproof tie-down rope – A separate tie-down rope is provided to strengthen fixation and prevent wind from lifting the cover. Second, Velcro corner fasteners – Velcro strips on corners help tie down the cover for added stability in strong winds. Third, Adjustable buckle straps – Sewn-in and adjustable buckle straps allow you to customize the fit and secure the cover tightly to your generator frame. Fourth, Bottom drawstring – Adjustable ties at the base help seal the cover and prevent wind from getting underneath. The GUYISS outdoor generator cover measures 28"L×20"W×20"H, ideal for most 3000-5000W generators. It is compatible with major brands including Champion, Westinghouse, Duroma and WEN, as well as a wide range of their models. Built with adjustable straps and side Velcro, it fits generators with minor size differences perfectly. We also offer multiple sizes in 28", 30", 32" and 38" to meet diverse needs. This cover is specially designed for use while the generator is running. All four sides can be rolled up and fixed with buckle straps to guarantee smooth airflow. Simply roll up the exhaust and air intake sides and keep other sides down, then the cover can stay on to protect electronics and plugs from rain, while you can easily operate control buttons and connect power cords. Always keep the exhaust side rolled up for proper ventilation and heat dissipation during operation. Thoughtful practical features include a top opening for refueling without removing the cover. Made of double-layer tear-resistant waterproof Oxford fabric, it adopts 900D high-grade PU coated waterproof material on the outer layer and 210D silver-plated waterproof lining. Waterproof zippers on the sides effectively stop rain from seeping through seams. The silver inner lining reflects radiant heat for great heat insulation. This all-weather cover defends against rain, snow, intense sunlight, strong winds and dust, preventing fading, aging to extend your generator’s service life. Equipped with comprehensive windproof accessories including a dedicated tie-down rope, corner Velcro fasteners, sewn-in adjustable buckle straps and a bottom drawstring, the cover stays firmly attached even in high winds. For harsh weather, fasten all Velcro and buckles tightly and anchor the cover to a nearby stable object with an elastic cord for extr