Systems and methods for oxygen production

A mask, wherein the mask includes an oxygen production system, and the oxygen production system includes a main control module and a molecular sieve module, wherein:

• the molecular sieve module includes a molecular sieve and a molecular sieve information unit, and the molecular sieve information unit is configured to store information of the molecular sieve, wherein the molecular sieve is connected with at least one valve, the molecular sieve and the at least one valve are integrated in the molecular sieve module, and the molecular sieve and the at least one valve are integrally replaced;
• the main control module is configured to read, write, and/or update the information of the molecular sieve stored in the molecular sieve information unit;
• wherein, when reading,
• in response to at least part of the information of the molecular sieve exceeding a preset range, the main control module controls the oxygen production system to perform a corresponding operation.