Siemens creating portable sensor to warn about asthma attacks, breathe deeply until it ships

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We all wheeze a little from time to time, at least we do when we've fallen off the fitness wagon and are trying desperately to climb back on. For some it's a little more serious than that, and for those prone to dangerous bouts of asthma Siemens AG has a bit of hope. It's developed a portable sensor that can detect minute increases of nitric oxide in a patient's breath, particles that serve as a sign of an impending asthma attack. The user can then use that information to ingest the correct amount of anti-inflammatory meds. The device is said to be about the size of a cellphone, though unfortunately Siemens didn't specify a model. Like, are we talking a Veer here or a king-sized Nexus S? Inquiring minds want to know.