For routine maintenance and dusting of the artwork, only the following methods are permitted:

● blow dry air at a temperature between 15°C and 22°C, at a speed of less than 40 km/h, at a minimum distance of 40 cm from the feathers;

● exclusively for feathers glued flat, use a soft natural bristle brush, sable or squirrel type, larger than No. 6, in the direction of the feathers (from their base to their tip).