The Most Flow Per Dollar Blower Door System for Large-Scale Testing

Retrotec’s Model 5300 Blower Door System is the most economical solution for testing commercial, multi-family, and high-rise buildings, delivering maximum airflow at the best value. Equipped with three Model 5000 Calibrated Fans within a large cloth panel door frame system, this setup moves vast quantities of air efficiently while maintaining accuracy and reliability.

This high-output system features six flow ranges, ensuring precise measurements across a broad range of enclosure volumes. The system also includes the industry-changing DM32X gauge, providing advanced data logging and seamless remote control from a laptop, streamlining the testing process for professionals. The Model 5300 is the perfect solution for professionals who need a high-performance system that delivers maximum airflow at an unbeatable value.

Retrotec fans are designed for versatility, allowing quick and easy reversibility. Switching between pressurization and depressurization is as simple as flipping the fan within its panel, offering unmatched convenience for various test scenarios.

Who Uses the Model 5300?

Energy auditors, HVAC contractors, building contractors, remodelers, and home inspectors rely on the Model 5300 for high-volume airtightness testing, benefiting from its power, affordability, and ease of use.