The colored substances you see inside your Blue Signature filter are part of its advanced odor-removal technology. These are specialized odor-absorbing pellets integrated into the filter alongside the traditional VOC-neutralizing carbon mesh layer.

While the carbon mesh effectively captures most common gases and volatile organic compounds (VOCs), the addition of these colored pellets enhances the filter’s performance by targeting even smaller and more stubborn odor molecules. Together, they deliver superior odor removal compared to carbon alone—helping keep your indoor air fresh and clean.

This is just one example of the innovative engineering behind Blue Signature filters, designed to handle real-world indoor air challenges with expert precision.