Is this a good AIR PURIFIER?

http://www.ebuyer.com/product/131946

specifications:

* Washable foam per-filter: yes
* Washable Nano TiO2 photocatalyst nickel foam filter: yes
* ESP (electrostatic precipitator): yes
* Powerful UVC germicidal lamp: yes
* Negative ionizer: yes
* Negative ions output:>1,000,000 ions/cbm
* Ozone concentration: <0.05ppm
* UVC wavelength: 254 nm
* UVC irradiation intensity: 10 μw/cm2 (1m distance)
* Fan speed: infinitely variable
* Air delivery highest: 20 CFM
* Effective range: 300ft
* Rating voltage: DC12V
* Power supply included: AC 100V-240V switching adaptor
* Power consumption: 16W Packing: 1pc/styrofoam shield then in a gift box