Oxygen Decompressor is a machine added to Galacticraft 2 as of version 2.0.6.
As the name suggests, it does the opposite of an Oxygen Compressor. When an Oxygen Tank is placed inside it will slowly empty the oxygen from that tank and pump it into a connected oxygen pipe network. For example you can empty an Oxygen Tank and store that oxygen inside an Oxygen Storage Module for later use.
|Right||Pipe output||Oxygen Gas|