Polluted indoor air can lead to discomfort, reduced efficiency or even chronic insomnia. Air pollution can be caused by the use of air conditioning systems, evaporation from certain building materials and furniture or combustion processes.
Merino wool can absorb molecules from pollutants such as formaldehyde, nitrogen oxides and sulphur dioxide. Furthermore, wool does not re-emit these noxious gases. It is estimated that wool purifies indoor air for up to 30 years.