Mass spectrometry with helium detects leaks as tiny as 10⁻¹¹ mbar·L/s — safeguarding every dose from oxygen, moisture, and microbial ingress.https://www.heliumleak.com/about/blogs/Helium-Leak-Testing-Is-Essential-for-High-Value-Biologic-Packaging-Integrity#Top https://www.heliumleak.com/about/blogs/Helium-Leak-Testing-Is-Essential-for-High-Value-Biologic-Packaging-Integrity#Top