Is fumigation safe for humans? Fumigation is safe for humans when performed by licensed professionals following strict safety procedures, but the fumigants themselves are highly toxic if humans are exposed directly. Gases like sulfuryl fluoride, methyl bromide, and phosphine can cause serious health effects including respiratory irritation, nausea, dizziness, kidney damage, and death if inhaled in enclosed space. That is why homes must be completely vacated, including people, pets, plants, and food, and sealed with tents. Professionals use monitoring equipment to measure gas levels and only clear homes for re-entry after aeration when levels drop below 1 ppm or other safe threshold, usually after 24 to 72 hours plus aeration time. Risks arise if someone re-enters early, if tent leaks near neighbors, or if food and medicines are not bagged properly. Long term, once cleared, no harmful residue remains that would hurt occupants. So fumigation is safe after proper aeration but extremely dangerous during application, requiring no human exposure.
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