A filter funnel with a Clamo-45 mm membrane is a laboratory apparatus used for filtration. The funnel is designed with a flat perforated bottom and a Clamo-45 mm filter membrane, which acts as a filter paper. The liquid to be filtered is poured into the funnel and the solid particles are trapped on the filter membrane while the filtered liquid flows through the perforations into a flask or other container placed below the funnel.

The Clamo-45 mm membrane provides a high degree of filtration and is commonly used for filtering liquids in laboratory settings. The use of a filter funnel with a Clamo-45 mm membrane helps to ensure that the filtered liquid is free from solid particles, making it suitable for further analysis or use in experiments.