PPM
| 57 | uint16_t getTVOC() { return _tvoc; }; // PPB |
| 58 | uint16_t getCO2() { return _co2; }; // PPM |
| 59 | uint16_t getH2_raw() { return _h2; }; // UNKNOWN |
| 60 | uint16_t getEthanol_raw() { return _ethanol; }; // UNKNOWN |
| 61 | float getH2(); // experimental // PPM |
| 62 | float getEthanol(); // experimental // PPM |