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Hand-held spirometer - Smart One Oxi - MIR - Medical International Research - with SpO2 monitor / Bluetooth / for smartphones
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MIR Smart ONE | Personal Pocket Spirometer | Peak Flow (PEF) and FEV1 : Amazon.co.uk: Health & Personal Care
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SMART ONE Digital Spirometer - Peak Flow Meter (PEF) & FEV1 with FREE Mobile APP - by MIR | B-Arm Medical Smartone Home Use Spirometer by MIR
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