Miller Filtair Nanofiber Replacement Filter Nanofiber Cartridge Filter features an ultra-thin surface webbing of tiny fibers to capture weld fumes on the surface of the filter instead of within. This extends the filter life, maintains longer lasting air flow, and lengthens your maintenance intervals. FILTAIR’s MERV 15* filter provides higher efficiency and longer filter life overall. *MERV (Minimum Efficiency Reporting Value) is between 1 and 20. A higher MERV indicates a more efficient filter and is more effective against submicron-sized particles .30 to 1.0 micron. Free standard ground shipping within contiguous U.S. Availability: Usually ships the next business day. 300539Mfg Industrial Price: $442.00Cyberweld Price: $397.00 All prices shown are in U.S. Dollars The Cyberweld® name, logo and the slogan "Weld with your mouse"® are registered service marks of: J.W. Goodliffe & Son, Inc. 1900 E. Elizabeth Ave. P.O. Box 4370 Linden, NJ 07036 (800) 419-0580 FAX (908) 486-9366 Phone answered live M-F 8:00am to 4:30pm EST © 2000 - 2009. All rights reserved.