We chose the EC172 axial fan to upgrade an older HVAC product line, and the improvements were immediate. Noise dropped by 5 dB at full speed, and airflow increased by 15%, improving overall system efficiency. The fan’s brushless motor and conformal-coated PCB withstand high-moisture installations. We’ve completed two winter production runs with no returns or performance issues. The Longwell team also provided barcode labeling on cartons to match our warehouse intake system, which simplified our logistics workflow.