detachablemask

noun
UK /dɪˈtætʃəbəl mɑːsk/
US /dɪˈtætʃəbəl mæsk/

A mask you can take off and put back on.

She wore a detachable mask on the bus and clipped it to her bag when she got off.


OTHER MEANINGS

2. A protective face piece that can be separated from a helmet or hood.

The firefighter's detachable mask snapped off the helmet for cleaning.

3. A decorative face covering that attaches to a costume with clips or ties.

The superhero costume came with a detachable mask.

4. A part of a breathing device that can be removed and replaced.

The snorkel has a detachable mask for easy packing.