... ,high cleanliness,hypoallergenic and no odor 3.use for pillow,cushion,mattress 1.Specification: White Duck Feather 2-4 cm2. ... Transparency: 500-600 (According to customer requirements)3.Oxygen consumption: 2.64.Color: Pure white 5.Features: high transparency, high ... ,sterilizing, the produced down has the characters of high filling power, high cleanliness, great warmth and it is hypoallergenic and ...