Aynuo’s Vent Liners are the easiest way to transform an existing non-vented package into a well-vented package – without modifying your existing cap or closure. 

Aynuo offers two styles of Liners: PE Foam Vent Liner and Aluminum Pulp Induction Vent Liner.

All liners are available in single- and multi-up roll goods, as well as in various widths. Die-cut parts can also be offered.