Profile: Bestfilters®.com, LLC is a provider of water filters and air purifiers. Our premium whole house water filter is designed for chlorine treated water supplies. The replaceable 20" x 4 1/2" carbon block filter (WR011) is manufactured to our highest standards, and has a long replacement life of 150,000 gallons. It filters chlorine taste and odor, sediment, rust & particulate matter for crystal-clear great tasting water at all the faucets. It also reduces the risk of contamination from giardia and cryptosporidium. A 4-1/2" x 10" pleated 1 micron sediment filter (WR013) removes sediment and larger particles to extend the life of the carbon block filter. Inlets and outlets are large 1" ports (3/4" ports available) and the system comes with a built-in pressure relief valve in the cap to simplify filter changes. Austin Air Healthmate Junior Replacement HEPA filter meets true HEPA standards, trapping 99.97% of all particles larger than 0.3 microns (1/300th the diameter of a human hair). It efficiently removes most allergens including pollen, pet dander, tobacco smoke, mold, and bacteria. This filter contains over 6.5 lbs. of solid activated carbon and zeolite. It measures 9.75"D x 11.25"H with foam gaskets for a tight seal. The Blueair 203 with SmokeStop filters effectively purifies air in small rooms up to 175 sq. ft. and includes a carbon impregnated SmokeStop filter for enhanced performance on odors & gases. The new Blueair 203SmokeStop in-room air purifier is the only air purifier, with its room capacity, to use HEPASilent™ technology, a combination of the features of electrostatic & mechanical filter technology that allows delivery of more clean air, at a faster rate, with less noise.