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Pulse Oximeter showing a low 88% oxygen reading and 69 heart rate against white background Basic medical tools for health workers during the pandemic Stock Photo - Alamy
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Amazon.com: Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate Measurements and Pulse Bar Graph, Portable Digital Reading LED Display, Batteries and Carry Case Included : Health & Household
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