摘要 |
A venting system using ePTFE as a venting membrane in applications such as nursing bottles and eye drop dispensers. The venting system allows inflow of gas to equalize pressure, when liquid is dispensed from a sealed container. The venting system does not allow passage of liquid, and does not allow passage of bacteria and virus. A restrictor can be used in the alternative, or in combination with, the ePTFE membrane.
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