They are made of paper. The exact composition is not conveyed tous. Please check these bags which have no fiberglass: https://www.ezvacuum.com/panasonic-u-u3-and-u6-antiallergen-hepa-cloth-bags-3-pack-p-216.html
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They are made of paper. The exact composition is not conveyed tous. Please check these bags which have no fiberglass: https://www.ezvacuum.com/panasonic-u-u3-and-u6-antiallergen-hepa-cloth-bags-3-pack-p-216.html