Any of various instruments for estimating the concentration of particles in the air by causing them to impinge on a surface to which they adhere.
A kind of hand-held motion picture camera driven by compressed air.

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Connections NYT: Hints For Today's Puzzle, Sat, Dec 27

NYT Strands Today - Hints, Spangram & Answers for December 27

Today’s Wordle Answer Dec 27 #1652- NYT Wordle Hints & Updates

Today's NYT Pips Hints & Answers

Today's NYT Capture Hints & Answers

NYT Mini Crossword Answers Today - The Mini for Dec 27 Solved