# Lab Filtration glossary

## Porosity

A measure of how porous a filter material is. Normally expressed as a percentage, it is the volume of the filter that is composed of pores compared to the total volume.

### FAQ Porosity refers to a measure of how porous a filter material is. Normally expressed as a percentage, it is the volume of the filter that is composed of pores compared to the total volume. Porosity can be calculated by (Volume of voids/ total volume) x 100%. The full volume and volume of a solid can be calculated by ((total volume-volume of a solid) / total volume) x 100%. The greater the percentage, the more water a filter can hold.

Porosity refers to a measure of how porous a filter material is. Normally expressed as a percentage, it is the volume of the filter that is composed of pores compared to the total volume.

Porosity can be calculated by (Volume of voids/ total volume) x 100%. The full volume and volume of a solid can be calculated by ((total volume-volume of a solid) / total volume) x 100%. The greater the percentage, the more water a filter can hold.