Are safety precautions used with compressed-air drug-delivery atomizers really working?

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Atomizers that use pressurized air to deliver topical medications to the oral and nasal mucosa have a dangerous flaw: the potential for spreading bacteria and other contaminants from patient to patient. At the end of the atomizer’s spray cycle, unused medication can carry contaminants from the device tip back into the reservoir. Researcher Timothy R. Wolfe, MD, author of the white paper "Are you inadvertently cross-contaminating patients in your practice?" questions the effectiveness of measures commonly thought to prevent this risk and proposes a safer alternative.

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