screener

Short definition from Wiktionary

Noun

1. 1
   One who, or that which, screens: A person employed to filter the mined coal through a metal screen to remove impurities.
2. 2
   One who, or that which, screens: A question or survey used to filter potential participants based on some characteristic.
3. 3
   An advance screening of a film sent to critics, awards voters, etc.
4. 4
   A cinema having the specified number of screens.