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Impinger(Greenburg-Smith)


The Impinger(Greenburg-Smith) is a laboratory device used to collect airborne particles or gases for analysis, commonly applied in environmental monitoring and air pollution studies.

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The Greenburg-Smith Impinger is a scientific air sampling device used to collect airborne contaminants, such as dusts, aerosols, gases, or microorganisms, by bubbling air through a liquid medium. It is designed based on the impingement principle, in which airborne particles are trapped in a collection fluid due to inertial impact. This type of impinger is a glass instrument, typically composed of a narrow inlet tube that delivers air into a bulbous collection chamber, where the high-velocity air stream impacts the liquid surface, forcing particles into the liquid. The Greenburg-Smith design is particularly effective for collecting fine particulate matter and is used in occupational health, environmental monitoring, and industrial hygiene.

Feature of Impinger(Greenburg-Smith)

  • Highly effective at trapping fine and ultrafine particles

  • Allows for quantitative analysis of airborne substances

  • Compatible with a wide range of collection media (e.g., distilled water, acids, reagents)

  • Reusable and autoclavable

  • Transparent for easy visual monitoring of collection process

  • Used in combination with air sampling pumps or vacuum systems

  • Available with single or multiple impinger setups for serial sampling

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