Last update May 2024

Can polypropylene water filters cause cancer?

I've heard along the grapevine that polypropylene may cause some severe health issues like cancer. How true is this?

Answered by

Lisa Miller - Patient Advocate

Polypropylene is considered a safe plastic by the Environmental Protection Agency (EPA) due to its non-carcinogenic and low flammability properties. While the toxicity of plastics can vary based on manufacturing processes, polypropylene's safety remains consistent according to the EPA and FDA recommendations. It's crucial to consider the production process and safety certifications when selecting a supplier to ensure the safety of polypropylene filter cartridges. The purpose of polypropylene filter cartridges is not only to filter water but also to prevent secondary contamination. The material of the water filter significantly affects water quality safety. Therefore, it's essential to prioritize 100% food-grade polypropylene when choosing a filter cartridge.

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