What is down fill power?
The warmth of a comforter is determined by the amount of down fill (measured in ounces) and by the quality of the fill (measured by fill power).
• The measurement of the ability of down to loft and trap air.
• 1 ounce of 750 fill down will fill a volume of 750 cubic inches.
• The average fill power for most down products is approximately 550 cubic inches. For comparison, below is a representation of DeWoolfson’s 650 and 750 fill power down.
• 750 fill power down is 15 percent warmer and fluffier.
