Unlock to see our ratings and compare products side by side a measure of how much the flow rate decreased, or time to filter increased, over the course of filter cartridge's lifespan. Certified to NSF ...

A closeup electron microscopy image of activated carbon, like those found in water filters. Credit: Dr. Mark Gale Activated carbon filters have become common household items as water filters in ...

A new class of carbon nanotubes could be the next-generation clean-up crew for toxic sludge and contaminated water, say researchers at Rochester Institute of Technology. Enhanced single-walled carbon ...