L7 built in circulating water pump, the pipeline cold water ahead of time. To solve the pain point of a cold water in the water pipe at each shower. The unique 1.3L stainless steel thermostatic accelerator, effectively filter the fluctuation of the water temperature, water temperature and water temperature of solution sometimes hot and sometimes cold bath two pain points. Intelligent oxygen care function effectively prevent emissions of carbon monoxide exceed the standard, advance prevention, active oxygen; three core short flame combustion technology effectively inhibits the generation of nitrogen oxides, nitrogen oxides reduced by 70%.

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