The independent USB switch controls only 2 USB charging ports and an LED voltmeter
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2019 Jun 17;32(6):1087-1095
53.1 KB Views: 7 #6 Interesting
Neurotoxicology 75:123128 Muthumalage T, Prinz M, Ansah KO, Gerloff J, Sundar IK, Rahman I (2017) Inflammatory and oxidative responses induced by exposure to commonly used e-cigarette flavoring chemicals and flavored e-liquids without nicotine
But lets break down whats inside that seemingly harmless vapor: Nicotine A highly addictive substance that can impair lung function, reduce oxygen delivery to muscles, and increase heart rate variability