There are following suggestion:
1.Clear air filter regularly. If containing lots of dust in material, clean it per week, otherwise clean it per month.
2.No oil in material. If oil must be used, it is needed to equip with a oil filter in return air inlet.
3.Suitable regenerative temperature. This temperature is 150 or 180 celsius degree when dewpoint is -40 or -150. Much higher temperature can reduce the lifespan of honeycomb rotor.