Spectroscopic observations of twenty-one faint cataclysmic variables candidates

We provide the first minimum light spectroscopic observations for 21 previously known or suspected faint cataclysmic variable candidates. The sources were selected from the Downes et al. ([CITE]) living edition catalog and the identified candidates have minimum light magnitudes of $V\sim18$–22. We confirm 15 of the candidates to be cataclysmic variables.