Microphone with integrated gas sensor

A microelectromechanical system (MEMS) device, comprising:

• a housing including a substrate and a lid defining a port, the substrate and the lid cooperatively forming an internal cavity, wherein the port fluidly couples the internal cavity to an external environment;
• a transducer disposed within the internal cavity and positioned to receive acoustic energy through the port, the transducer configured to convert the acoustic energy into an electrical signal;
• and
• a sensor disposed within the internal cavity and positioned to receive a gas through the port, the sensor configured to facilitate detecting at least one of an offensive odor, smoke, a volatile organic compound, carbon monoxide, carbon dioxide, a nitrogen oxide, methane, or ozone.

A microphone device, comprising:

• a substrate;
• a lid coupled to the substrate, the substrate and the lid cooperatively forming an internal cavity, wherein at least one of the substrate or the lid define a port fluidly coupling the internal cavity to an external environment;
• a microphone transducer disposed within the internal cavity and positioned to receive acoustic energy through the port, the microphone transducer configured to generate a first electrical signal based on the acoustic energy;
• and
• a gas sensor disposed within the internal cavity and positioned to receive a gas through the port, the gas sensor configured to interact with the gas and generate a second electrical signal based on the gas.