Many museum collections have been stored with naphthalene and paradichlorobenzene mothballs to mitigate insect activity. There is a mounting concern about the toxicity and carcinogenicity of these substances. Conservators working with mothball-contaminated collections can experience nausea, headaches, and irritation from the odor, which can be especially strong during humidification or aqueous conservation treatments. Experimental results, presented at NATCC 2005, suggest that the naphthalene vapor above a humidified textile was approximately 50 times more concentrated than a dry textile. While the amount of naphthalene on an artifact has proven difficult to quantify, the question of cost-effectively ridding artifacts of the contamination must be addressed. This presentation discusses a method developed at NMAI and MCI to passively remove/reduce mothball residues from textiles using vapor pressure of the pesticide and rapid air exchange. A Delta storage cabinet was retrofitted with ductwork and connected to a laboratory ceiling rail exhaust system, a particularly smelly, mothball treated textile was placed in the sealed cabinet, and air extracted continuously for 18 hours, after which no perceptible odor was detected. Cabinet design, the role of temperature and RH, and the treatment protocol will be described. This is an efficient, non-invasive, cost-effective method for removing mothball contamination from museum collections.