How do you drop infs from dask dataframe/series?

I have a dask Series from which I need to drop both infs and nans. .dropna() only drops the nans. In numpy/pandas, I would do something like result = result[np.isfinite(result)]. What's the recommended equivalent in dask-land? Indexing the dask object with a boolean array gives an error. Is there some way to tell dask that inf or -inf should be considered null values, for example?