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3M Purification’s LifeASSURE PDA filter, formerly known as BioASSURE, combines two asymmetric polyethersulfone (PES) membrane layers together with the Advanced Pleat Technology (APT).
This design results in a robust filter with a high surface area that is optimised for both high throughput and fast flow applications while offering 0.2 μm absolute rated filtration for sterilising performance.
The unique hydrophilic polyethersulfone membrane wets easily for integrity testing and is ideal for applications where low protein binding is critical.
LifeASSURE PDA Membrane Technology
LifeASSURE PDA filters incorporate two layers of unique polyethersulfone membrane. The upstream layer is highly asymmetric and provides optimised prefiltration capacity for the downstream layer that contains a robust, centrally located, retention zone. Both membrane layers are asymmetric and together result in a filter with multiple filtration zones providing extremely high contaminant capacity, fast flow rates and reliable sterilising filtration performance.
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