WPI-g-00038630–250 g/m²Virgin kraft40% confidence
Air Filter Paper.
Industrial packaging paper grade. Permanent ID WPI-g-000386 — verified, source-traced, free.
GSM 15
15g/m²
lighter
GSM 30 · this
30g/m²
WPI-g-000386 · standard
GSM 60
60g/m²
heavier
01
Canonical specification
Basis weight
30–250g/m²
Fiber source
Virgin kraft
industrial packaging
Paper type
industrial packaging
Confidence
40%
source: wpi
WPI ID
WPI-g-000386
Slug
air-filter-paper
Last updated
2026-04-18
GSM range
30–250g/m²
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