Definition of "off-gas" [off-gas]

• Gas produced as a side effect of a chemical reaction, sometimes hazardous. (noun)
• To emit gases, especially noxious ones. (verb)

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• "We had our basement in Seattle tested right after, and were already at 0.4 pCi/L. Building tightly sealed houses has been seen as a danger in recent years, I thought, even with super-green materials that omit formaldehyde, and off-gas relatively little."
• "According to the recall notice from the Consumer Product Safety Commission, the solar inverters—which convert solar photovoltaic voltages into utility grid voltages—contain components that can off-gas as they degrade."
• "In reality, it's a veritable toxic soup of chemical additives just waiting to off-gas into your baby's developing body."