Look:Label information: down type, filling amount, down content (clothing)/down content (quilt), fabric material, product size
Press:Lay flat for three minutes, press and then release immediately, if rebound slowly, it proves the down is a poor filling quality; if no rebound, not real down.
Touch:Pinch to test the softness of the hand.
Yes: Soft and complete small hair pieces
No: Too large & thick long pieces of feather, poor rebound, soft & short and rough feather shafts (crushed feather)
Slap:No dust
Knead:No down comes out
Smell:Take a deep breath close to no odor or odor
Weigh:The lighter the weight is, if the larger the volume is, product quality is better
