Buy from Amazon.com : http://best.waitmejapan.com/?asin=B000P75WME
Filtrete Clean Living Dust Reduction AC Furnace Air Filter MPR 600 20 x 20 x 1Inches
Product Description :
Filtrete Clean Living filters are electro-statically charged to help remove more particles from your air attracting and capturing particles including lint household dust dust mite debris mold spores and pollen from the air passing through the filter
Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through
Microparticle Performance Rating 600
Outperforms non-electrostatic filters
Microparticle Performance Rating MPR 600 equates to Minimum Efficiency Reporting Value MERV 7