Design principles of membrane structure odor collection system are the following: 1, should be kept within a moderate negative odor collection system to collect and transport process is not compromised. 2. The odor concentration selected ventilation rate, relatively high concentrations of high ventilation rate. 3, where workers are often activities, an appropriate increase in ventilation rate. 4, ventilation and airflow for the wind farm layout design combines the active area of ??the workers. 4.21 More odor seal cover information, please visit www.jdlfrp.com