Sulfuryl fluoride

A man-made fumigant applied by licensed pest control to kill termites and other pests in homes, warehouses, railcars, and food-processing facilities [2].

Breathing air during or after fumigation if you enter too soon or gas leaks; workers during application and aeration; small dietary exposure from treated commodities (regulated by EPA tolerances) [1][3].

Can cause headache, dizziness, cough, nausea, confusion, tremors or seizures, and lung injury; high levels can be fatal [1]. In the body it yields fluoride, which can disturb calcium balance at high doses. It’s odorless—don’t rely on smell [1][2].

Pest control workers; residents and neighbors of fumigated structures (especially multi-unit buildings); children and pets; people with asthma, or heart, kidney, or neurologic disease [1][2].

Use licensed professionals; obey warning signs and tarps; do not re-enter until instrument clearance is posted; keep pets out. If the warning agent (chloropicrin) odor or symptoms occur nearby, leave and call local authorities [2].