The AERIAL DRYBOX ABK 500 is the ideal dryer combination comprising side channel compressor and an adsorption dryer. The intelligent, energy-efficient method of drying hollow spaces and insulation layers following water ingress or damp damage, using blow-drying. The built-in side-channel compressor in the AERIAL DRYBOX is well guarded against overheating. The heat generated is used to regenerate the drying rotor, thus saving more energy. Gentle, energy-saving blow-drying involving constant dry air conditions. The advantage over conventional systems is that the dry air is not blown into the hollow space at extremely high temperatures. Instead it uses very dry air to speed up drying and protect the substance of buildings.