Learn the differences between membrane and non-membrane filter media. GORE Membrane Technology provides longer bag life, lower emissions rates, lower pressure drops and has better throughput.

Non-Membrane Depth Filtration

Filtering Mode
  1. Dust is filtered inside of filter media
  2. Internal dust cake buildup required
  3. Particles enter into filter media and can pass through
  4. Might not filter finest particles
  5. Efficiency requires careful balance between filter, particulate, and system conditions
Cleaning Mode
  1. Difficult to remove particles, only surface dust cake is removed
  2. Dust deep inside media can cause higher Dp and blinding with time
  3. Dust buildup inside media can lead to emissions after cleaning
Non-membrane filter illustration
Non-membrane cross section

Membrane Surface Filtration

Filtering Mode
  1. Dust filtered at membrane surface
  2. No dust cake buildup required
  3. No particles enter backer
  4. Capable of submicron filtration
  5. Maintains capture efficiency over wide range of system conditions
Cleaning Mode
  1. Almost all dust falls off membrane surface
  2. Particles do not build up inside backer
  3. Surface is hydrophobic, even wet dust cakes can still be handled
Membrane filtration illustration
Membrane cross section

GORE Membrane Efficiency and Versatility

Membrane (500x)
Membrane (500x)
Surface Filtration

Uniform membrane structure allows higher efficiency.

Non-Membrane (500x)
Non-Membrane (500x)
Depth Filtration 

Dust still penetrates into backer and is trapped.

Gore has developed a family of membranes for use in industrial filtration applications

GORE Traditional Membrane for versatility - cross section
GORE Membrane for rugged environments
Membrane optimized for both airflow and durability
GORE Membrane optimized for both durability and efficiency

GORE Membrane Performance Charts 

GORE Membrane Filters are not just cleanable, they are also more efficient and last longer.
Better gas throughput graph
Lower Emissions graph
Lower Pressure Drops graph
FOR INDUSTRIAL USE ONLY 

Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.