Due to their 100% natural origin, feathers and down are biodegradable. At the end of their life cycle, they are transformed into nitrogenous fertiliser, thus reintegrating into the vital biological cycle. If unintentionally dispersed into the environment, the feathers degrade within a few months and do not pollute the soil or groundwater. They are also a completely hypoallergenic material. Various studies have shown that, if they are properly washed and cleaned, they are not responsible for allergic reactions caused by dust mites.