E-cigarette, or vaping, products have been available for more than 10 years. These devices emit aerosols containing nicotine, flavoring, and often other additives, including tetrahydrocannabinol. They were initially lauded as lessharmful alternatives to inhalational tobacco products, but in 2019 there was a nationwide outbreak of e-cigarette or vaping product use-associated lung injury (EVALI), with more than 2500 hospitalizations and 60 deaths. 1 Patients with EVALI may present with tachycardia, tachypnea, hypoxia, leukocytosis, and chest computed tomography findings of bilateral ground-glass opacities. 2 EVALI ranges from a mild pneumonitis to lifethreatening acute respiratory distress syndrome (ARDS), with >30% of patients requiring intubation. 3 In cases of rapidly progressive ARDS, swift institution of extracorporeal membrane oxygenation (ECMO) can avoid lung injury associated with high-pressure ventilator settings, and lead to faster recovery. This seems to be particularly true for EVALI, with pulmonary infiltration resolving more expediently than in other etiologies of ARDS. 4 EVALI presentation can be difficult to distinguish from COVID-19, which could lead to diagnostic quandaries during this pandemic. Owing to the nascent experience with COVID-19, there is no strong consensus on the use of ECMO for patients with COVID-19, but the World Health