Replacement pack of 5 x dual coils for the aspire ets bdc and ce5 bdc clearomisers available in 16 or 18ohmr further informationr when using the clearomiser vapour production will decrease even though it is good for dozens more refills this is because the coil becomes clogged with e liquid residue restoring vapour production is a simple process by unscrewing the coil from the base of the clearomiser and swapping for a replacement vapour production will be restored back to the original hig