Quality Filters Since 1939

  • STOCK FILTERS • REPLACEMENTS • CUSTOM ORDERS • WHOLESALE

Our mission at Smith Filter is to provide the highest quality Air and Grease Filters with a quick turnaround and affordable prices. As a leading designer and manufacturer of OEM original and OEM replacement custom air filters, we deliver components in record time, from prototype to production.

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Manufacturers of air & grease filters

We fulfill orders of all sizes from small custom orders to large wholesale stock orders.
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Custom Filter Orders

We have the capabilities of making special size filters to your specification
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Expedite Service

Our team can have custom air & grease filter orders made in a week
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Dependable Lead Times

We have delivered on time for 80 years – A promise we stand by

Here are some of our product categories

For questions, quotes, and custom orders, please call (800) 447-4009.
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Permanent Air Filters

Aluminum, Galvanized Steel, Stainless Steel, Electrostatic, and Foam Type Filters
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Disposable Air Filters

Pleated Filters, Charcoal Pleated, Fiberglass, and Polyester Filters.
OEM Engineered Air Filters

OEM Engineered Air Filters

From standard to custom-engineered designs, we have the capabilities to meet your specifications.
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Grease Filters

Fire Patrol, Fire Guard “G”, and Thrifty Flame Stop
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High Efficiency Air Filters

HEPA Filters, ASHRAE Filters, Rigid Cell Filters, Bag Filters, and Mini Pleats.
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Holding Frames

NS-100 Filter Holding Frame, NS-50 Filter Holding Frame, and S-76 Pad Holding Frame.
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Crypto Mining Air Filters

We build custom filters that meets your data center or crypto mining containers’ unique needs.
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Industrial Processing Filters

We engineer our industrial air filters for tough conditions, that hold up to heavy use and contaminant levels.

Certified Filter Specialists

We have certified air filter specialist (CAFS) ready to answer your questions. Just fill out the form below, and one of our representatives will get in touch with you.
NAFA Quality Control Certification Badge