present,The railway station of line 1 is doing the experiment，Comparing the effect of the two types of air filtration purification.One of the installed on the air conditioner in the box, the other is located in the duct outlet.

"In the outlet pipe of the new air filter device",Is the use of high voltage electrostatic principle of bacterium adsorption dust, won't produce any influence and harm to human body health."In fact, the technology is a mature technology. Simply put, is to make the bacteria in the air 'shock and die, voltage is 6000 v, can kill more than 90% of the bacteria in the air. In addition to"Technology can replace the traditional air filters, the installation in the central air conditioning system, and play a role in energy saving.

Another is installed on the air conditioner in the negative ion "filter".The way is also referred to as "house of the forest technology, just like in the forest, the small particles of dust coagulation and into larger particles, settling into the ground, so as to purify the air