What do modern buildings have built-in that can contribute to the spread of smoke and toxic gases throughout a structure?

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asked Dec 7, 2019 174k views

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Dtorgo · Answer 1 · 2019-12-14T02:05:17+0000

HCAV systems, which are types of ventilation systems used for such things as heating and Air conditioning, it is a technology of indoor or vehicle environmental comfort feature.

What do modern buildings have built-in that can contribute to the spread of smoke and toxic gases throughout a structure?

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