WPI-g-00039420–250 g/m²Virgin pulp, Recycled pulp40% confidence
Air-conditioning Filter Paper.
Industrial packaging paper grade. Permanent ID WPI-g-000394 — verified, source-traced, free.
GSM 5
5g/m²
lighter
GSM 20 · this
20g/m²
WPI-g-000394 · standard
GSM 50
50g/m²
heavier
01
Canonical specification
Basis weight
20–250g/m²
Fiber source
Virgin pulp, Recycled pulp
industrial packaging
Paper type
industrial packaging
Confidence
40%
source: wpi
WPI ID
WPI-g-000394
Slug
air-conditioning-filter-paper
Last updated
2026-04-18
GSM range
20–250g/m²
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