| SMO | Semiconducting metal oxide |
| VOCs | Volatile organic compounds |
| WHO | World Health Organization |
| TCR | Temperature coefficient of resistance |
| ASIC | Application-specific integrated circuit |
| CH | Composite heater |
| MEMS | Micro-electro-mechanical systems |
| CMOS | Complementary metal-oxide-semiconductor |
| SD | Specially denatured |
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