Heaven Fresh NaturoPure HF 290 Mode D'emploi page 8

4. Use the brush attachment with your vacuum cleaner to clean the filter.
CAUTION
Do not use water or any household cleaner to clean the HEPA filer.
NOTE: The HEPA filter can be used continuously for up to two years. When the HEPA
filter turns from white to black, it should be replaced with a new one. If the HEPA filter is
still white, it does NOT need to be replaced.
5. Depending upon your filter type, either it will only fit in one way or reference the
arrow on the side of the filter. Install the rear cover back to unit and securely latch
in place.
Heaven Fresh
NOTE: Both of filter and rear cover
must be installed otherwise the purifier
will not power on.
8 HF 290