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About Protect-Air

Protect-Air® products are designed to help management easily and cost-efficiently comply with the stringent directives on the safety of pneumatic equipment issued by industrial standards organizations such as ISO, OSHA and others.


The range of Protect-Air products provides a variety of niche products developed for compressed air systems-protection units-to tackle H&S (Health & Safety) issues where compressed air is concerned. All of our Protect-Air products are intended to increase efficiency, protect employees, protect equipment and ensure cost saving production throughout all levels of the manufacturing environment. Our number one consideration is to offer customers added value through broad and deep product lines, knowledge, processing and world class customer service. The increased obligation placed on industry to address internal health and safety issues has seen a marked increase in machine safety enclosures and barrier type guarding. The Protect-Air line of pneumatic safety products offer a clear path to increased protection of persons and property as well as, compliance with current industry regulations. is owned and operated by Proportion-Air, Inc. – an American manufacturer of electro-pneumatic pressure regulators and flow controllers – Proportion-Air is also a distributor of Protect-Air products in the United States.


Proportion-Air’s team of experts in pneumatic systems, fluid technology and electronics is at your service to help you find the right instrument for your application and task.


Please contact us if you have any questions.

Terms & Conditions


Web Site Terms and Conditions of Use


General Disclaimer:


Please read this agreement carefully before using this web site.


By accessing the website, you agree to be bound by the terms and conditions below. If you do not wish to be bound by these terms and conditions, you should not access or use the web site.


Copyright Statement:


You may download, use and copy the materials found on the web site for your personal, informational, noncommercial use only, provided that all copies that you make of the material must bear any copyright, trademark or other proprietary notice located on the site which pertains to the material being copied. Except as authorized in this paragraph, you are not being granted a license under any copyright, trademark, patent or other intellectual property right in the material found or described herein. All such rights are retained by Proportion-Air, Inc. and/or any third party owners of such rights. You may not create framed links to these web pages without express written permission from Proportion-Air, Inc.

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