+44 203 286 8189 steve.jones@westside-int.com

Updated Nov 2022

Drying without draining

Most methods of dehumidifying need regular maintenance. Rosahl is different. If you’re in business, lifetime maintenance costs are often more than the cost of the equipment, but the consequence of missing maintenance intervals can be even worse.

Rosahl is a small membrane that removes moisture through electrolysis. It needs no maintenance, has a low running cost, is compact and has a long service life.

Traditional drying cabinets often use thermal cooling systems designed to condense unwanted moisture and then drain it away. Cooling comes from a thermo-electric (Peltier) heat pump or a compressor and refrigerated coil. Draining the condensate and the running costs can be an issue. Desiccant driers such as Silica gel need regular heat recycling to remove absorbed moisture.

Membrane dehumidifiers need no draining

When connecting a low voltage 3V DC power supply to the Rosahl dehumidifier, it attracts moisture to the membrane which dissociates it into oxygen, and hydrogen ions. The hydrogen ions (not hydrogen gas) pass through the membrane to combine with oxygen as water vapour on the other side. This process of electrolysis leaves the inside of the enclosure dry.

The super slim (5.5mm ) Rosahl dehumidifying elements enjoy a low power consumption (3W), have a long working life, are maintenance free, and silent and vibration free in operation. Makes it ideal for protective cabinets for wide range of products and materials, protecting sensitive electronic equipment. Furthermore, by installing a hygrostat in the case means they can also protect natural materials and musical instruments .