Bag Filters: Felt Media vs. Mesh Media cover image

Bag Filters: Felt Media vs. Mesh Media

Kaitlyn ColliganKaitlyn Colligan avatar

Kaitlyn Colligan

3 minute read

Bag filters are widely used in various industrial filtration applications to remove contaminants and particles from liquid or gas streams. Two common types of media used in bag filters are felt and mesh media. In this blog post, we will explore the differences between felt media and mesh media, their characteristics, and when each type is most suitable.

Felt Media

Felt media is made from densely compressed fibers, such as polyester or polypropylene, forming a porous structure. Here are some key characteristics of felt media:

1. Particle Retention: Felt media provides excellent particle retention due to its dense structure. It can effectively capture and retain contaminants of various sizes, including fine particles and sediments.

2. Depth Filtration: Felt media offers depth filtration, meaning that particles are retained throughout the media's thickness rather than solely on the surface. This allows for higher dirt-holding capacity and longer filter life.

3. High Flow Rate: Felt media typically allows for higher flow rates due to its porous structure and larger surface area. This characteristic makes it suitable for applications that require high liquid or gas throughput.

4. Broad Chemical Compatibility: Felt media is chemically inert and can be compatible with a wide range of fluids, acids, and bases. However, compatibility should always be checked for specific applications and chemicals involved.

Felt media is commonly used in applications such as water treatment, chemical processing, pharmaceuticals, food and beverage processing, and oil and gas industries. It is particularly effective in removing solid contaminants, sediments, and particulate matter.

Mesh Media

Mesh media is made of woven or knitted synthetic material, such nylon, forming a grid-like structure with uniform openings. Here are some key characteristics of mesh media:

1. Precise Particle Retention: Mesh media offers precise particle retention due to its uniform and well-defined openings. It effectively captures particles of a specific size range while allowing smaller particles to pass through.

2. Surface Filtration: Mesh media primarily filters particles on the surface, unlike felt media's depth filtration. This can result in faster clogging of the filter compared to felt media, especially when dealing with fine particles.

3. Mechanical Strength: Mesh media is known for its mechanical strength and durability. It can withstand high pressure differentials and is less prone to tearing or damage during handling or cleaning processes.

4. Reusability: Mesh media can be cleaned and reused multiple times when compared to disposable felt media. This makes it a cost-effective option in applications where frequent replacement would be inefficient or costly.

Mesh media is commonly used in applications such as automotive, aerospace, paint and coatings, and where precise particle separation, support, or protection are required.

Choosing the Right Media for Your Bag Filters

The choice between felt media and mesh media for your bag filters depends on specific filtration requirements and the nature of the application. Consider factors such as the particle size distribution, desired filtration efficiency, flow rates, compatibility with the fluid or gas, maintenance requirements, and cost considerations.

At, we offer a wide range of bag filter media options, including both felt and mesh media, to meet diverse industrial filtration needs. Our team of experts can assist you in selecting the most suitable media for your application, ensuring optimal filtration performance and efficiency.

Contact us today to discuss your bag filter requirements and explore our comprehensive range of filtration solutions. Trust as your reliable partner in industrial filtration, providing high-quality products, exceptional customer service, and expertise you can rely on.

Choosing the Right Pleated Cartridge: Factors to Consider for Different Applications

Previous Post

How to Choose the Right Dust Collector Filter for Your Application

Next Post