How to maintain car air purifier?

It's simple to maintain car air purifier.
When the draught fan and electrode full of dust, need to clear it, generally tuned up every six months.
Use long hair brush to clear the dust on the draught fan and electrode.
At ordinary times should pay attention to moistureproof to avoid damage the purifier.
When do not use the purifier, need to clean it then pack into the box, should be stored in ventilated, dry place.