Try circulating the bleach through the filter like I suggested. You may have to do this a couple times. The Ehfimech (tubular shape) and the EhfiSubstrat/Pro (rock like or cocoa puff shape) can then be boiled in a pot on the stove. This will help flush out any remaining bleach residue & yucky stuff that may be left. The 'hard' media shouldn't have to be thrown out unless you can't get rid of the smell.
Just buy new coarse (blue) and fine (white) pads if the bleach/boil procedure works for you. Also make sure that you completely rinse out any remaining bleach residue from the filter by running fresh water through the filter using the same procedure I suggested before. Then let everything dry out and do the smell test again. If you're satisfied with the cleaning, set it up on a small tank, if you have one, & let it run for awhile. You can always add some snails to see if there are any issues.