打开净化器过滤室门，将活性炭或玉米芯等过滤介质添满过滤室，关严门子，检查门子的气密性。

Open the door of room of filter, and fill it with filtration medium (active carbon or maize core etc). Close the door tightly and examine airproof of the door.

youdao

打开净化器过滤室门，将活性炭或玉米芯等过滤介质添满过滤室，关严门子，检查门子的气密性。

Open the door of room of filter, and fill it with filtration medium (active carbon or maize core etc). Close the door tightly and examine airproof of the door.

youdao