This is meltblown fabric that passes N95 tests with 1 layer of 27 gsm Filtration efficiency is over 95% with a 0.3 micron NaCl particles tested on a TSI #8130a. Pressure drop is less than 12 mm H2O width is 260 mm. It is packaged on 1080 meter rolls ~560 mm od, sealed in plastic bags. 24 rolls per pallet. Shipping to USA and Canada. for quote.