A custom walk-in environmental test chamber supports rigorous testing of telecommunications and IT network hardware during manufacturing. The front-to-back airflow design exposes full racks of equipment to controlled temperature, humidity, and airflow conditions to ensure reliability and reduce warranty costs. Key features include remote-cooled condensing units, bi-parting doors with heated windows, and a spacious interior tailored for network gear. By simulating extreme operating environments, this chamber enables manufacturers to validate products can withstand real-world conditions prior to release. Thorough environmental stress testing using this custom chamber helps identify potential issues early in the manufacturing process.