Is your air conditioner bringing in dirty outside air? 2020年07月15日2013年08月24日 由 Thomas Talhelm 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. 你知道这些吗? 又热又“霾”,空调会把外面的雾霾吸进来吗? 什么样的滤网组合才能护我周全? 空调是否会把室外肮脏的空气带进室内? Q&A: Do ACs Bring in More Dirty Air?