... for quilts, pillows, cushions, mattress toppers, sofa.4. Low oil, fat, dust, moisture contents.5. Washed, deodorized, sanitized, dried, cooled and ... .------ feathers are germfree, disinfectant, hypoallergenic4.Separated into five classes in separator. ------Five classes: feather4-8cm, feather2-4cm, down feather, feather down ...