If carpet off-gasses VOCs, what action best reduces concentration?

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Dilution by outdoor air lowers indoor VOC concentrations. VOCs emitted by carpet add to the indoor air, and their level depends on how quickly the air is exchanged with outdoors. Bringing in outdoor air reduces the concentration by dilution and helps carry contaminants out of the space. Merely increasing indoor recirculation can mix air but often maintains or redistributes contaminants unless filtration is very effective, and lowering humidity to zero isn’t realistic or reliably effective for emissions. Sealing the carpet with a coating might reduce some emissions but introduces coating-related VOCs and isn’t as dependable as ventilation.