Is Chiroflow hypoallergenic? August 06, 2019 14:39 Yes Related articles What type of polyester filling is used in the Chiroflow pillow? What is the size of the Chiroflow Professional Waterbase pillow? Is normal tap water OK to use in my pillow? How long can the water stay in my pillow before it needs to be changed? Our patient has brought a pillow back to our office for a warranty issue, what do I do now?