Prosorb Humidity Control – Cassettes

Humidity control cassettes from Prosorb present an easy way of maintaining a stable relative humidity level in display cases and cabinets.

Supplied as a complete unit, the prosorb cassettes require no additional containers or trays. Pre-filled with Prosorb beads, the cassettes are constructed from a sturdy polypropylene case with vapour permeable non-woven polyester panels.

Dependent upon the desired RH (relative humidity) ‘%’ required, we have cassettes preconditioned to satisfy the ideal level for museum display cabinets, generally in the range of 40% to 60%. The enclosed Prosorb beads will absorb and desorb water vapour, as appropriate, to stabilise the humidity.

As with any other humidity control, it is important to monitor the environment using a hygrometer as reconditioning may be required after an extended period. Clay packs are available for reconditioning, see accessories below, for more details see here

Prosorb Cassette Sizes

Full-size Cassettes:

• Dimensions: L 335 mm, W 110 mm, H 44 mm.
• Content: 950 g beads. One or more cassettes per cubic metre of air volume are required depending on circumstances of application

Half-size cassettes:

• Dimensions: L 335 mm, W 110 mm, H 24 mm.
• Content: 500 g beads. One half-size cassette will be sufficient for 0,7 m3 depending on circumstances of application

See ‘Downloads’ below for information on how much Prosorb you may need.

See ‘Specification’ tab for more information on Prosorb. 60% cassettes available as a special order, please contact PEL directly.