BIG AIR® 400 CFM Solar Roof Vent – Solar Powered Exhaust Fan for Shipping Containers, Sea Cans - High Airflow Ventilation for Heat & Moisture Control (FAN + 2 INTAKE VENTS W/SCREEN MESH)

Improve container comfort and airflow with the BigAir 400 CFM Solar Powered Roof Vent - a high-performance, eco-friendly ventilation solution designed for shipping containers, trailer rooftops, sheds, and other enclosed structures. This solar-driven exhaust fan delivers up to 400 CFM of air movement, completing a full air exchange in a 20 ft container roughly every three minutes and in a 40 ft container in about six minutes under ideal conditions, helping reduce heat, humidity, condensation and stale air buildup without wiring or electrical costs. Built with anti-UV/freeze resistant ABS-PC construction and brushless DC NSK Japanese ball bearings, the BigAir vent operates quietly with minimal vibration and long-lasting performance. The package includes a removable aluminum bug screen to block pests and debris, durable metal framing with leak-proof flashing, and all necessary mounting hardware for a secure installation on corrugated rooftops. Solar powered with no switch required, this ventilation system runs automatically with sunlight, making it ideal for off-grid container projects, industrial storage, workshops, agricultural applications, and residential attic ventilation. For optimal ventilation performance and passive intake support, pair with BigAir 45 intake vents (sold separately). Made in Canada and backed by a 10-year limited warranty on the solar fan, the BigAir 400 CFM Solar Roof Fan combines rugged durability, eco-smart operation, and long-term reliability to keep your container environments ventilated and protected year-round.

• 400 CFM solar-powered roof exhaust fan - efficient ventilation that provides a full air exchange every ~3 minutes in a 20 ft container and ~6 minutes in a 40 ft container under ideal conditions.
• Solar powered with no on/off switch - integrates a Canada Go Green 10 W solar panel for automatic operation whenever sun is available - eco-friendly and cost-free power.
• Durable anti-UV/freeze construction - ABS-PC body and wildlife/hail-resistant build withstand harsh climates while protecting internal fan components.
• Removable aluminum bug screen included - helps block insects and debris while maximizing airflow from the rooftop vent system.
• Quiet, vibration-free brushless DC fan - NSK Japanese ball bearings deliver smooth, low-noise operation with no vibration for superior comfort.
• Unique metal framing and leakproof flashing - custom-desined framing kit for corrugated container roofs ensures a secure, weather-tight installation.
• Professional grade, easy install hardware included – supplied with rivets and self-tapping screws for a straightforward rooftop mounting.
• Made in Canada with 10-year limited solar warranty – quality craftsmanship backed by extended protection on solar panel, motor, and fan components.