Hi prajyotpalande,
1.Customer usually decide upon the membrane based on their requirement and use case, for example our customer is using a PTFE membrane for waterproofing. But as I mentioned the customer should test based on their use case. Usually, membrane manufacturers have professional tools to analyze air flow rate, and breathability is also one of the parameters of the membrane. 2.There is no clear limit on the volume of the cavity. Usually, the smaller the cavity, the faster the exchange between the sensor and the external air. 3.Yes.
... View more