COPD patients using shonky oxygen devices

Patients in search of a quick fix for breathlessness are turning to shonky oxygen concentrators that purport to boost "physical ability and life's energy", an expert warns.

Costing upwards of $500, oxygen concentrators are sold online and largely target COPD patients.

Some are promoted as helping pregnant women, infants, students and even "brain workers" to breathe easier.

One pamphlet claims: "Due to increasingly serious air pollution, especially in some industrial cities, fresh air with sufficient content of oxygen is unlikely available

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