Etymotic hf2 Earphones + Headset - Manual (Page 9)

9
ACCU•Filter Wax Filters
Etymotic earphones have special ACCU•Filter ™ wax filters that
smooth the frequency response and prevent ear wax from
entering the earphones. An ACCU•Filter is located at the end of
the earphone and is visible when the eartip is removed.
If a filter becomes clogged, it should be replaced. A dirty
ACCU•Filter will reduce earphone output. The filter should be
changed if loudness decreases or the sound quality declines.
Note: ACCU•Filters are not reusable.
ACCU•Filter Removal Note: Use the tool to remove the filter.
ACCU•Filter Replacement Note: Do not use the tool to replace the filter.
1. Remove Eartip. 2. Insert tool into
the filter.
3. Remove filter.
1. Insert a new
filter.
3. Re-attach eartip. 2. Press gently
against a hard
surface to secure
the filter in place.
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