model unit price b.f.e. KF-94(3D) USD 0.19/pc. 94-99 % KF-80(3D) USD 0.16/pc. 80-90 % KF-AD dental USD 0.12/pc. 70-85 % Normal dental USD 0.06/pc. 60-75 % please note that KF-94(3D),KF-80(3D),KF-AD dental masks are duly certified by Korea government. KF-AD means korea filter anti droplet. however,normal dental mask is the same shape as KF-AD dental mask,but this is not certified by government. 3.The quality specifications are as follows. model outer prop melt blown filter inner KF-94(3D) 40 60 40 20 KF-80(3D) 40 60 30 20 KF-AD dental 25 x 25 30 normal dental 25 x 25 25 *** The above outer/prop/inner quality is non woven fabric. *** ROUND ear loop in nylon and polyurethan,not flat ear loop. *** nose clip in polypropylene. 4.The packing details are as follows. item a polybag a inner box a outer carton a 20 foot container carton size KF-94(3D) 1 pc 100 pcs 500 pcs 210,000 pcs(420 cartons) 580 x 350 x 300 mm. KF-AD x 50 pcs 2,000 pcs 400,000 pcs(200 cartons) 500 x 470 x 400 mm. *** KF-80(3D) mask is the same packing detail as KF-94(3D). *** the normal dental mask is the same packing detail as KF-AD dental mask.