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Updated: May 24, 2026

A Model of Self-limited Acute Lung Injury by Unilateral Intra-bronchial Acid Instillation
Published on: August 30, 2019
Acute lung injury following refrigeration coil deicing
Nathanael J McKeown1, Brent T Burton
1Department of Emergency Medicine, Oregon Poison Center & Oregon Health & Science University, Portland, Oregon 97239, USA. mckeownn@ohsu.edu
Abstract:
We report a case of a worker who developed ALI requiring mechanical ventilatory support after attempting to melt ice condensate by applying the flame of an oxy-acetylene torch to refrigeration coils charged with a halocarbon refrigerant in a closed environment. A discussion of possible etiologies are discussed, including phosgene, carbonyl fluoride, and nitrogen oxides. Primary prevention with adequate respiratory protection is recommended whenever deicing is performed in a closed space environment.
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