Labels:anechoic chamber | crt screen | door | monitor | shelf | sky OCR: Standard 500-L Louvers 5.5 Wall Discharge PL-Y PL-8 PL-2 M/2 min M/2 min 75 mm 6 mm PL-2 (3 in. 0.25 in. Device AIRFLOW being tested Pressure Required to Accelerate Air and Overcome Losses due Blockage and Exit Conditions