A high-efficiency water filter removes 10 percent of microplastics, or 99.9%.

A high-efficiency water filter removes 10 percent of microplastics, or 99.9%. 

1. There are a number of different water filtration technologies that are capable of removing microplastics from water, including physical filters, chemical filters, and biological filters. The specific features and performance of these filters can vary widely, and the effectiveness of a particular filter will depend on a number of factors, such as the type and size of the microplastics being removed, the type of filter being used, and the water quality and flow rate.
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 It is possible that some filters are able to remove 99.9% of microplastics from water in as little as 10 seconds, but this would be subject to the particular filter and the circumstances surrounding its usage. It is important to carefully evaluate the performance and capabilities of any water filter before using it to ensure that it is capable of effectively removing the contaminants of concern.