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Digital Bud is a Home Air Monitor.Today,our home environment is a complex system,including Temperature、Humidity、Computer and TV Radiation、Smoke and some other elements. Obviously,we have no appropriate way to coordinate these factors,now.But home air quality is very important for us to live a good life.Digital Bud can help us monitor the changes of these home air factors,then Change Bud s status and colors to tell us whether home air is suitable at that time.then we can take measures to improve air quality. eg:open the windows,let the smoke go.