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Air/Oxygen Mixers

Precision and Innovation in Respiratory Support: Explore Our Air/Oxygen Gas Mixers

At Sechrist Industries, we're proud of our nearly five-decade legacy in air/oxygen gas mixers, known for precision and quality. Our products, renowned for their accuracy within +/- 1% of the selected FiO2, cater to diverse applications, ensuring reliability and safety in respiratory support. Upholding values of accuracy, dependability, versatility, and safety, our mixers surpass FDA standards. They are designed to be simple, accurate, and versatile, featuring integral filtration and an alarm/bypass system. We also offer custom designs for unique requirements.



Combining advanced engineering and clean operational design means that now, the delivery of precise oxygen mixer is in the clinician’s control. Our expansive product line permits you to select the right air/oxygen gas mixer for every application. Accurate to within +/- 1 percent of the selected FiO2, each of our units include compatible flow meters, water trap assemblies, and the knowledge that we subjected them to the highest, most exacting quality control regimen in the medical device industry.


Our focus remains constantly on our obligation to provide our health care partners with the tools you need to preserve and prolong the health and lives of patients needing respiratory support at the levels prescribed in each individual case.

We honor this obligation by standing behind every one of our air/oxygen gas mixers in every hospital and medical center we supply, now in more than 172 countries worldwide.

Sechrist Industries full system integration provides connection capacity to flow from our gas mixers through our active humidifiers and heated inspiratory circuits to our high-flow nasal cannulas, a system that patients suffering respiratory distress may tolerate better than using a face mask.



Accuracy, dependability, versatility, safety, and professionalism are Sechrist Industries, Inc. core values.

The accuracy of our instruments is paramount to our mission of serving the needs of the healthcare community. We understand that calculating a proper flow of mixed gas to improve a patient’s oxygen saturation requires the clinician’s full faith in the accuracy of their instruments. To this end, we manufacture or procure every part used in our devices and subject each component to the strictest quality control.

Our goal is not merely to comply with FDA regulatory requirements; we aim to exceed those standards. We established a rigid quality assurance auditing schedule to ensure we meet that mark at every point in our production process. Sechrist Industries’ trained engineers, technicians, and regulatory staff perform every task knowing that patients’ lives depend on their stringent adherence to those high standards.


We provide additional assurance of optimal equipment performance with the audible alarm/by-pass function built into every gas-mixer unit. If an unexpected interruption occurs in the gas supply, the alarm instantly triggers to alert the medical team. During the interim, the unit continues to supply gas to the patient from the remaining gas source.

The design of our air/oxygen mixer can meet the needs of any room configuration, whether your site requires a wall-mounted unit or a portable pole mount. For additional flexibility, extended 14-foot air hoses and oxygen hoses are available.

We believe Sechrist Industries, Inc. commitment to our healthcare partners is represented in every medical device we produce, from the Model 3500 CP-G expressly designed for ECMO and heart-lung by-pass procedures, to our Model 3600 series designed for more general applications.

Sechrist Air / Oxygen gas mixers provide for precise mixing of air and oxygen for many clinical applications. Sechrist mixers are available in high flow or low flow configurations. Mixers are available for general and specific applications.



It is well understood that if a device can be designed to perform its intended task in a straight forward and simple manner, the better it will accomplish its function. A simple design resulting in lower costs, better reliability and lower maintenance costs. Sechrist mixers are consistently less complex than competitive devices.


The precise design of Sechrist mixers provides assurance of oxygen concentration accuracy within + 1 percentage point even in circumstances involving wide variances in supply gas pressures.



Pole or wall mounting configurations, as well as dual outlet connections, are available for most models.

Custom Designs

Custom designs can be manufactured for desired specifications and applications.


Sechrist mixers incorporate integral filtration of supply gases. A 0.01-micron water trap/ filter is provided for the air inlet connection and both gas supply connections are protected by 5 micron sintered stainless steel (non-corroding) filters.


Alarm/Bypass System

In the event of a supply gas failure, an audible alarm is triggered as well as an assurance that gas from the remaining supply source will continue to be delivered.

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