PureClean™ Self-Sealing 1421B Tyvek® Autoclave Bag with Clear Film Side and Steam Indicator

• Designed for conformance to EU GMP Annex 1
• Clear film side for visual inspection to verify dryness
• PureClean™ 1421B Tyvek® is essentially the same as the original 1422A Tyvek® but without the antistat agent
• No anti-stat coating = no residues left behind
• Specifically intended for pharmaceutical applications

PureClean™ 1421B Tyvek®
Keystone is proud to partner with DuPont™ to offer the new PureClean™ 1421B Tyvek® material as a potential replacement for the legacy 1422A type.
PureClean™ Tyvek® is essentially the same as the original but without the antistat agent. This advanced material is designed for pharmaceutical
manufacturing customers seeking the benefits of the next generation of Tyvek®.

Clear Film Side for Visual Inspection

The clear film side allows for easy visual inspection without breaking the sterile barrier, as required by Annex 1.

“Right-Sizing” Bags for Production
Using the correct size bag instead of an oversized drawstring bag by eliminating excess hydrophobic material removes the chance of any trace residue being left behind, prompting an investigation.

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