Biometric device

A biometric system comprising:

• a housing comprising a main chamber and a breath chamber, wherein the breath chamber comprises an inlet and an outlet;
• a sensor coupled to the main chamber and at least partially in fluid contact with the breath chamber, the sensor being configured to detect the concentration of at least one gas of a user's breath in the breath chamber;
• and
• a controller comprising:
• a breath chamber module configured to indicate a status of the breath chamber;
• a valve module configured to indicate a status of valves disposed in the inlet and outlet of the breath chamber;
• a sensor module configured to determine the concentration of the at least one gas of the breath of the user in the breath chamber;
• and
• a data module configured to determine the health score based on the concentration of the at least one gas of the breath of the user.

A method for determining a health score of a user, the method comprising:

• positioning a mouthpiece of a biometric device into the mouth of the user;
• exhaling a breath through the mouthpiece an into a breath chamber of the biometric device;
• detecting the presence and concentration of at least one gas in the breath of the user;
• and
• determining a health score of the user based on the presence and concentration of the at least one gas in the breath of the user.