Clinical manifestations of lacrimator exposure can be immediate or significantly delayed. In both phases, the sequelae can be severe and life-threatening. As personal protection devices, these agents have become readily available to the public in many areas of the country. Emergency physicians should gain a firm understanding of the presentation, management, and disposition of the lacrimator-exposed patient. A case of accidental prolonged lacrimator exposure inducing pulmonary edema and bronchospasm is presented.