Is my pillow hypoallergenic? September 09, 2020 14:49 Updated Yes, the Chiroflow Waterbase Pillow is hypoallergenic. Related articles Chiroflow's Product Quality Assurance: What is the size of the Chiroflow® Professional Waterbase® pillow? What type of polyester filling is used in the Chiroflow pillow? My pillow is leaking, what do I do now? Which side of the pillow do I sleep on?