Mountain Air has been voted North America's Best Filter - five times; they're the only filter that can last 3 years with constant use - mad! It achieves this through superior filtration and using activated carbon high in quality and mechanical strength.
Mountain Air filters are designed for maximum quality, performance and durability. Its simple functionality contains a complex interior design using unique materials available. Mountain Air Filters reduce noise level considerably and require zero maintenance - hang it up and forget about it for 3 years!