5pcs in 1 pack = $409 A8 ^; G0 y) d8 w( [$ l' w1 H- K
- a# A: T( q$ }: n. d' J, ?Available 400pcs total./ f8 b( c/ I8 |. J, z
No negotiation at all , H0 O1 }4 W J2 B, B0 o6 l9 G2 ^) ?( z# O1 Y
Leave you phone number with amount you want
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KF means Korea Filter and 80/94 means 80%/90% of filter efficiency. Hence, it means a mask that has 80%/94% of filter efficiency. KF 80 means the mask is certified to filter out at least 80% of the pollutants. KF 94 means certified to filter out 94% of pollutants.