Down and Fiberfill laboratories may also do the following tests:

Fill Power Testing: Measures the loft or fluffiness of down indicating its quality and insulating efficiency Testing
Hypoallergenic Testing: Ensures that fiberfill products are unlikely to cause allergic reactions Testing
Thermal Insulation Testing: Assesses the ability of down and fiberfill to retain heat and maintain warmth Testing
Durability and Compression Testing: Evaluates how well the fill materials maintain their shape and insulation properties under pressure and over time Testing