Nta:
1. High purification efficiency thiab loj ua muaj peev xwm.
2. Kev ua haujlwm ruaj khov, kev ua haujlwm ntev ntawm lub hnab lim thiab ua haujlwm yooj yim.
3. Muaj peev xwm ua kom muaj zog, ua kom muaj plua plav tshem tawm siab thiab qis emission concentration.
4. Tsawg zog noj, txhim khu kev qha thiab ruaj khov.