Filter Systems Including Optical Analyte Sensors and Optical Readers

A filter system comprising:

• a housing;
• a filter medium disposed within the housing;
• a optical analyte sensor comprising a detection medium that changes at least one of its optical characteristics in response to an analyte, the optical analyte sensor disposed within the housing such that the detection medium is in fluid communication with the filter medium;
• and
• an optical reader comprising at least one light source and at least one detector, the optical reader removably attached to the housing such that at least a portion of light emitted by at least one light source is reflected from the optical analyte sensor and captured by at least one detector.

A filter system comprising:

• a housing;
• a filter medium disposed within the housing;
• a optical analyte sensor comprising a detection medium that changes at least one of its optical characteristics in response to an analyte, the optical analyte sensor disposed within the housing such that the detection medium is in fluid communication with the filter medium;
• and
• an optical reader comprising at least one light source and at least one detector, the optical reader attached to the housing such that at least a portion of light emitted by at least one light source is reflected from the optical analyte sensor and captured by at least one detector.