Silver nanoparticles in the Eco Silver pre-filter prevent the growth of microorganisms on the filter, including bacteria and viruses. Coconut carbon in the pre-filter neutralizes odors, smoke, pollutants and allergens.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.