Pennine Aqua Moisture Absorber with easy refill tabs. Ideal for motorhomes, caravans and the home. It's compact, lightweight and foldable for easy storage. For an optimal performance, place the device at least 10cm from the walls. Always place the device facing in an upright position. The lasting period of the refill tab depends on moisture levels and the room temperatures. Before you replace with a new refill, make sure to rinse the middle section to clear out any residual crystals. this will ensure that there is no blockage or overflow of the collected liquid.