We Make Filters 

We Sell Solutions

Our Focus | Our History | Our People | Our Location

Our Mission is Simple

We strive to be your #1 choice for process filters by delivering technical expertise and high quality products that lead to your success. It is what we've been doing since 1998 and what we expect to be doing for many more years.

Quality Drives Us

From product inception through every step in manufacturing, quality drives our processes to ensure that customers with critical applications can trust our products' performance and consistency

Collaboration Advances the Outcome

When process engineers need filtration advice, they turn to CPF specialists to expedite their research, recommend an efficient filtration chain with proven filters and test their liquids and process gases to ensure success. Working together translates into a filtration solution that works the first time, and every time.

Shorter Lead Times Differentiate Us

All engineering, manufacturing, and shipping activities center around delivering product in a timeframe that rivals other vendors.

Our Employees Make It Happen

Talented, committed, hard working, diverse, and the heartbeat of the company. Need we say more?


From One Filter to Millions

After decades in the filtration industry, Fred Arbogast envisioned a process filter company based on a triad of products, technical support, and fast delivery – a combination the market demanded but seldom experienced. Along with Kristen Ramalho, an accountant by trade, the two responded to the needs of the market. In 1998, Critical Process Filtration was born.


ISO 90012015 LogoIt was not long before the early-stage manufacturer implemented and became certified in the ISO 9001 Quality Management System. Sales began by supplying distributors, and expanded to serving OEMs and end-users in industries where filtration was critical to the safety of the products.


Critical Process Filtration has grown steadily over the years in manufacturing space, personnel, and capacity. As a valued employer and community member, Critical Process Filtration continues to call Nashua, New Hampshire home. American craftsmanship, dedicated workers, along with the company’s focus and commitment to its original goals, has resulted in selling more than two million filters.


The company’s mission was clear at its inception, and it has not changed since. More than two decades later, Critical Process Filtration provides made-to-order, high-quality filtration solutions that include technical support from initial inquiry through installation, and the life of the operation, along with the company’s “secret sauce” of fast delivery times. Its broadening product lines, automation, seasoned talent, and customization of products have all contributed to its success. Today, if you ask management about the greatest lesson learned in growing their business, the answer is clear...

fred talking hands

“You don’t get a second shot, so it's imperative that you get it right the first time.” - Fred Arbogast, Co-founder

Our People


Critical Process Filtration, Inc.


One Chestnut Street

Nashua, New Hampshire 03060

Phone & Fax

Telephone: (603) 880-4420

Fax: (603) 880-4536



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