Is your air conditioner bringing in dirty outside air? Here’s a live test with a particle counter. See the average results over multiple AC tests here.
芝加哥大学行为科学系的助理教授; Smart Air创始书呆子。
Is your air conditioner bringing in dirty outside air?
芝加哥大学行为科学系的助理教授; Smart Air创始书呆子。
