In the second half of a year, the weather turns cold, dry air, rainfall, and industrial emissions, the increase of the motor to the rear of the machine, the large number of small dust particles floating in the air, is easy to generate the north common fog weather, prepare for the fog weather, are you ready?According to related information, people spend 90% of their life indoors, 96.25% of indoor air is polluted, and 89.56% want to improve indoor air quality.How to improve, the environment we can not improve, our indoor environment can be easily purified, free breathing, this requires indoor in...