EAST can provide different filters as buyers request. Normally we offer nylon filters that are washable. And the non-woven fabric filters are also available for EAST manufacturer. 

We suggest using vacuum cleaner to clean the filter for longer life. If the filters can not be cleaned due to heavy dust, you can wash them.

And you can also buy some spare filters for changing if there is too much dust in the environment.

It is suggested to clean filter by 2~4 weeks in order to keep dehumidifiers in good condition.