Fibrous Filters | McMaster-Carr

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Filter Efficiency @ 3 Microns

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Removes Particle Size Down To

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691 Products

About Air Filter Efficiency Ratings

Panel Air Filters

These filters are typically used as replacements in HVAC equipment.

Snug-Fit Panel Air Filters

The filter material extends beyond the frame for a tight fit, creating a seal to prevent air from bypassing the filter around its edges.

Mildew-Resistant Snug-Fit Panel Air Filters

A compound inhibits mildew, mold, and fungi growth.

Snug-Fit Multi-Panel Air Filters

Stop unfiltered air from passing between panels or around filter tracks.

Made-to-Order Panel Air Filters

Create a custom-sized filter or protective layer for expensive filters.

Quick-Disconnect Reusable Metal Panel Filters

Magnetic strips on the back of the frame make these filters easy to install and remove.

Reusable Electrostatic Panel Air Filters

An inherent electrostatic charge attracts dust and particles to these filters.

Strong-Odor-Removal Panel Air Filters

Eliminate heavy odors with these filters that have 30 times the odor removing ability of standard odor-removal air filters.

Air Filter Rolls and Pads

Air Filter Rolls

Cut these rolls to the size you need.

Air Filter Pads

Cut these pads to the size you need.

Prefilter Air Filter Rolls

These rolls are an economical choice for protecting more expensive filters that catch finer particles.

Prefilter Air Filter Pads

These pads are an economical choice for protecting more expensive filters that catch finer particles.

Reusable Air Filter Rolls

Cut these washable, reusable rolls to the size you need.

Reusable Air Filter Pads

Wash and reuse these pads. Cut to the size you need.

Reusable Air Filter Sample Packs

Determine the right pores per inch for your air filtering application—you'll receive several small samples with different pores per inch.

Electronic Equipment Air Filter Pads

Designed for use with electronic equipment, these pads can withstand prolonged exposure to heat and humidity.

Odor-Removal Air Filter Rolls

Carbon granules inside these filters remove odors from the air. Cut them to the size you need.

Bag Air Filters

The deep pockets on these filters maximize filtering surface area with minimal airflow resistance.

Cube Air Filters

Prevent air from bypassing your filter. These filters are self-sealing thanks to the filter material that fully encloses the metal frame.

Ultra-High-Temperature Quartz Glass Filter Wool

Form unique shapes inside filters to sift corrosive liquids and gases at temperatures up to 1900°F.