What was recalled
In October 2017, the U.S. Consumer Product Safety Commission (CPSC) announced a significant recall involving specific scuba diving regulators manufactured by Diving Unlimited International (DUI). This action affects a specialized piece of equipment essential for underwater breathing: the Ocean Management Systems (OMS) Airstream Evoque regulator. These devices are critical components of any scuba setup, as they attach directly to the valve of your scuba tank and regulate the high-pressure air inside so that you can breathe comfortably at depth. When this recall was issued on October 25, 2017, it targeted a precise range of these regulators that had been identified as potentially defective.
The recall is not global; it applies only to units with specific serial numbers inscribed on the body of the regulator, clearly marked alongside the "Airstream" branding. Affected serial number ranges include 57792121 through 57792200, 57813071 through 57813150, 57814061 through 57814100, and 57813264 through 57814403. If your regulator’s serial number falls within any of these ranges, it is part of this recall. DUI has taken the proactive step of notifying all known purchasers directly about the issue.
While the exact number of units sold worldwide is not specified in the CPSC alert, the recall was part of a broader distribution effort by Diving Unlimited International. These regulators were marketed as high-performance gear for recreational and technical divers who rely on consistent air delivery in demanding underwater environments. The company’s reputation has long been tied to this equipment, which is why they initiated this voluntary recall upon discovering potential malfunctions during use.
If you purchased an Airstream Evoque regulator from Diving Unlimited International or an authorized dealer between the time these serial numbers were produced and the recall date, it is crucial to verify your unit’s identity. The manufacturer has made itself available to assist customers in confirming whether their specific device is affected, ensuring that only those with the defective components are required to act.
This targeted approach allows divers to quickly determine if their gear is part of the recall without unnecessary alarm or inconvenience for unaffected models. By focusing on these serial ranges, DUI and the CPSC aim to remove potentially hazardous equipment from active use while maintaining trust in the brand’s commitment to diver safety.
The hazard, explained
At the heart of this recall is a critical failure in the equipment that allows scuba divers to breathe underwater. The Diving Unlimited International regulators in question are part of the Ocean Management Systems (OMS) Airstream Evoque line. To understand why this is dangerous, it helps to look at what these devices actually do. A scuba regulator is not just a simple valve; it is a complex mechanical device that attaches directly to your scuba tank. Its sole job is to take the high-pressure air stored inside the cylinder and reduce it to a breathable pressure that matches the surrounding water depth. When you inhale, the regulator detects the drop in pressure and instantly releases air. When you stop breathing, it closes tightly to prevent air from escaping.
The specific hazard here is a malfunction within this pressure-regulation mechanism. While the recall does not detail the exact engineering flaw, regulators that fail typically do so in one of two ways: they either deliver too much air (free-flowing) or, more commonly and more dangerously, they stop delivering air altogether when you need it most. In the context of deep diving, if the regulator malfunctions and ceases to provide a steady flow of breathable air, the diver is immediately cut off from their life support system. Underwater, you cannot simply hold your breath and wait for help; you must breathe continuously to keep your lungs inflated and equalize pressure. Without a working regulator, this becomes impossible.
This leads directly to the drowning hazard cited by the Consumer Product Safety Commission (CPSC). When a diver’s air source fails while submerged, panic can set in quickly. The physiological response to not being able to breathe is an overwhelming urge to inhale, which causes the diver to gasp for air that isn’t there. This rapid depletion of oxygen and carbon dioxide buildup can lead to unconsciousness within minutes. Furthermore, if the regulator fails by releasing air uncontrollably (free-flow), the diver will exhaust their tank supply in a fraction of the normal time, leaving them with no air for the journey back to the surface or for decompression stops. In either scenario, the result is a life-threatening emergency where the diver is trapped underwater without the means to breathe.
The seriousness of this hazard is underscored by the fact that Diving Unlimited International has already received three reports of these units malfunctioning during active diving operations. While it is reassuring that no injuries have been reported so far, each incident represents a near-miss where a diver was lucky to survive. These are not theoretical risks; they are documented failures of a device designed to keep you alive in an environment where human beings cannot survive without mechanical assistance. The potential for harm is severe because the margin for error underwater is virtually zero. A failure that might be a minor inconvenience on land becomes a fatal trap beneath the surface.
Understanding this mechanism highlights why immediate action is necessary. You are not just dealing with a broken piece of plastic and metal; you are dealing with a potential lifeline that has been compromised. The reliability of your regulator is the single most important factor in your safety while diving. If that link in the chain is weak, the entire system fails. This is why the CPSC and Diving Unlimited International are urging users to stop using these specific serial numbers immediately. The goal is to prevent a third malfunction from becoming a fourth, fifth, or worse tragedy. By removing these units from service, we eliminate the possibility of this mechanical failure occurring during a dive.
It is also worth noting that scuba diving often takes place in remote locations, far from immediate medical help or easy surface access. When equipment fails underwater, the diver must rely entirely on their ability to manage the emergency and ascend safely. A malfunctioning regulator removes that ability, forcing the diver into a desperate struggle for survival against the physical laws of pressure and buoyancy. This is not an exaggeration; it is the reality of the environment in which this product operates. The hazard is not just about breathing; it is about maintaining control over your body and your air supply in one of the most unforgiving environments on Earth.
Who is most at risk
The primary group at immediate risk consists of current owners and users of the specific Diving Unlimited International Ocean Management Systems (OMS) Airstream Evoque regulators that were subject to this recall. Because the defect involves a critical mechanical failure in the device that controls air pressure for breathing underwater, anyone who has purchased or is currently using these units within the specified serial number ranges faces a direct threat to their safety. The hazard is not theoretical; the manufacturer has already confirmed that three separate incidents have occurred where these regulators malfunctioned during active diving operations. While no injuries were reported in those specific instances, the potential for a fatal drowning event is inherent in any failure of life-support equipment at depth.
It is important to clarify who is and is not vulnerable in this context. This recall does not affect the general public, nor does it pose a risk to children, the elderly, or individuals with disabilities in the way that many other consumer product recalls do. Scuba diving regulators are specialized pieces of technical equipment used almost exclusively by trained adults engaging in recreational or professional underwater activities. There is no secondary risk to bystanders, family members, or the broader community from these devices when they are not in use. The danger is strictly contained to the diver who is actively breathing from the unit while submerged.
Within the group of divers who own these units, the risk is uniformly high regardless of experience level, though the consequences may be interpreted differently by novices versus experts. A regulator malfunction can manifest as a free-flow of air or a complete loss of airflow, both of which are catastrophic in an underwater environment. For an inexperienced diver, such a failure could lead to panic, rapid ascent, and decompression sickness or drowning due to disorientation. For an expert diver, who may be better equipped to handle emergency protocols, the risk remains equally severe because the fundamental supply of breathable air is compromised. The physical demands of diving mean that any sudden interruption in breathing requires immediate, calm, and technically proficient action to survive.
Therefore, the "at-risk" population is defined strictly by ownership of the affected serial numbers: 57792121 through 57792200, 57813071 through 57813150, 57814061 through 57814100, and 57813264 through 57814403. If you do not own one of these specific regulators with the "Airstream" label, you are not at risk from this particular recall event. However, for those who do, the vulnerability is absolute until the device is removed from service and returned to Diving Unlimited International for a full refund.
How to tell if you have the recalled item
If you own scuba diving equipment from Diving Unlimited International, specifically regulators manufactured by their Ocean Management Systems (OMS) division, it is critical that you verify whether your specific unit falls within this recall. The affected products are the OMS Airstream Evoque regulators, which are essential pieces of gear that attach directly to your scuba tank valve and control the pressure of the air you breathe while underwater. Because these regulators are vital for survival beneath the surface, being certain about your model is the first step in ensuring your safety. Do not rely on general assumptions; you must physically inspect your equipment to confirm its identity.
The most definitive way to identify if your regulator is part of this recall is by locating and reading its unique serial number. This number is stamped or engraved directly onto the body of the metal regulator. You should look for the word "Airstream" followed immediately by the serial number on the main housing of the device. Once you have located this identifier, compare it against the specific ranges listed in the recall notice. The recall applies only to regulators with serial numbers falling within these exact sets: 57792121 through 57792200; 57813071 through 57813150; 57814061 through 57814100; and 57813264 through 57814403. If your serial number does not appear in any of these four specific ranges, your unit is not part of this particular safety alert.
While the serial number is the primary method of verification, it helps to have a general understanding of what you are looking for. These are metal regulators designed for professional or serious recreational scuba diving. They are not entry-level plastic accessories but rather precision-engineered components that interface with high-pressure air tanks. If you purchased your gear recently, before October 25, 2017, and it matches the model name "Airstream Evoque," you should proceed immediately to check the serial number. If you bought it second-hand or have had it for several years, checking the engraving on the body is still the only reliable way to know for sure. There are no color or size variations that define the recall; it is strictly based on the production batch identified by those specific serial ranges.
If you find your serial number matches one of the recalled ranges, please stop using the regulator immediately. Do not attempt to dive with it under any circumstances, even for a short training session in a pool or shallow water. The malfunction risk involves drowning, which requires immediate and serious attention. Once confirmed, you can contact Diving Unlimited International for your remedy.
What to do — step by step
If you are an avid scuba diver or know someone who owns a Diving Unlimited International regulator, your immediate priority should be safety above all else. The Consumer Product Safety Commission (CPSC) has identified a serious malfunction risk in specific OMS Airstream Evoque regulators that could lead to drowning. Because this is not a minor issue but a life-threatening hazard, you must act with urgency and precision. Please follow these concrete steps to protect yourself and ensure you receive the full remedy offered by the manufacturer. First and foremost, you must immediately stop using the recalled regulator. Do not attempt to "test" it in a pool or shallow water, and do not take it on any planned dives. The hazard is inherent to the unit’s design or manufacturing defect, meaning it could fail at any moment underwater where air supply is critical. Continuing to use the device puts your life and the lives of your dive partners at significant risk. Treat this recall as a strict "do not use" order until the issue is resolved by the manufacturer. Next, you need to verify if your specific unit is part of this recall. The recall only applies to OMS Airstream Evoque regulators with specific serial numbers. You will find the word "Airstream" and the serial number engraved on the body of the regulator. Check your records or physically inspect the tank valve attachment point. The recalled units fall into these four distinct serial number ranges: 57792121 to 57792200, 57813071 to 57813150, 57814061 to 57814100, and 57813264 to 57814403. If your serial number does not fall within these exact ranges, your unit is not part of this specific recall, though regular maintenance is always recommended for scuba gear. If your regulator matches one of the recalled serial number ranges, you must contact Diving Unlimited International (DUI) to initiate the return process. The company has stated that they are notifying all purchasers directly, but if you have not received a notification, you should proactively reach out. You can call them at 800-325-8439 between 8:30 a.m. and 5 p.m. ET, Monday through Friday. Alternatively, you may email rcwatts@dui-online.com for assistance. For additional details on the service bulletin, visit www.divedui.com and click on “Service Bulletins” under the support tab at the top of the page. Finally, follow the instructions provided by DUI to return the unit. The remedy for this recall is a full refund. Do not attempt to repair the regulator yourself, as improper handling could worsen the malfunction or cause injury. By returning the unit to the manufacturer, you will receive your money back and eliminate the drowning hazard from your equipment. This process ensures that you are financially made whole while removing a dangerous piece of gear from your diving arsenal.Your refund, repair, or replacement options
If you have identified your scuba diving regulator as part of this recall, the path forward is straightforward and designed to prioritize your safety without imposing any financial burden on you. Diving Unlimited International (DUI) has established a clear remedy for this specific issue: they are offering a full refund for the recalled units. This is not a partial credit or a store voucher; it is a complete return of the purchase price, allowing you to decide how best to proceed with your diving gear needs moving forward. The company recognizes that trusting equipment with your life requires absolute confidence, and when that trust is compromised by a potential malfunction, the most respectful and responsible action is to remove the risk entirely from your possession.
To initiate this process, you do not need to navigate complex web forms or wait for automated responses. DUI has taken the proactive step of notifying all purchasers directly, which means you may already have received information regarding this recall. However, if you need to take action yourself or require further clarification on the refund terms, you can contact their support team via phone at 800-325-8439. Their representatives are available to assist you from 8:30 a.m. to 5 p.m. Eastern Time, Monday through Friday. This human touch ensures that any questions about shipping labels, refund timelines, or eligibility can be answered clearly and promptly.
In addition to calling, you have the option to reach out via email at rcwatts@dui-online.com. Email is often useful if you need to send documentation, such as photos of your regulator’s serial number for verification, or if you prefer a written record of your communication regarding the refund. Whether you choose to call or email, ensure you have your regulator ready so you can provide the specific serial number found on the body of the unit. This detail is crucial because it confirms that your specific model falls within the affected range.
For those who prefer digital resources or wish to review official service bulletins for additional context, DUI directs consumers to their website at www.divedui.com. From there, simply click on the “Service Bulletins” link located under the support tab at the top of the page. This section will host the most up-to-date technical information and instructions related to this recall. Please note that while you might expect an option for repair or replacement in many recalls, the specific remedy outlined for this incident is a full refund. Therefore, your primary step is to return the regulator to DUI to receive your money back, rather than sending it away for a fix. This approach underscores the seriousness of the drowning hazard associated with these regulators and ensures that no compromised equipment remains in use.
Once you have contacted DUI through one of the methods above, follow their specific instructions for returning the item. They will guide you on how to ship the regulator safely and securely. After they receive it, your full refund will be processed. This process is designed to be as seamless as possible, allowing you to quickly resolve the safety concern and focus on planning your next dive with peace of mind. Remember, if you are unsure about any part of this process, do not hesitate to call their support line; their team is there to help you through every step.
What can happen if you ignore it
When a piece of life-support equipment fails, the stakes are fundamentally different than when a household appliance malfunctions. Ignoring a recall notice for these Diving Unlimited International scuba diving regulators is not merely an inconvenience; it is a direct gamble with your physical safety in an environment where there is no room for error. The core hazard identified by the CPSC is that these specific OMS Airstream Evoque regulators can malfunction. In the context of scuba diving, "malfunction" is a terrifyingly broad term that can encompass anything from a failure to deliver air on demand to uncontrolled free-flowing air, or a complete cessation of airflow entirely. Because the regulator’s job is to take high-pressure air from your tank and reduce it to a breathable pressure at any depth, a mechanical failure disrupts the most critical link in your survival chain.
The real-world consequence of continuing to use a recalled unit is the heightened risk of drowning. This might sound stark, but it is the logical outcome of equipment failure underwater. If the regulator fails to provide air during an inhalation cycle, you will experience immediate breathlessness. In a panic-induced state, which is natural when air supply seems compromised, a diver may hyperventilate or attempt to clear a malfunctioning device by biting down harder or moving it around, actions that often exacerbate the problem rather than solve it. If the regulator stops working completely, you are left with no source of breathable air while being pulled deeper by your own buoyancy controls or simply drifting in place. Without immediate access to an alternate air source or a rapid, controlled ascent—which requires significant training and calm under pressure—loss of consciousness can occur within minutes, leading to drowning.
It is important to look at the data provided in this recall alert with clear eyes. The firm has confirmed three specific reports of units malfunctioning during actual diving operations. While it is reassuring that no injuries have been reported so far, this silence does not indicate safety; rather, it highlights the narrow margin between a close call and a tragedy. In diving, a "no injury" outcome often depends heavily on luck, the depth of the dive, the proximity to the surface, and the presence of a dive buddy who can intervene. Relying on luck is not a safety strategy. The fact that three separate units have already shown signs of failure suggests a systemic issue in the manufacturing or design of this specific serial number range. By ignoring the recall, you are essentially choosing to be the next data point in a potential series of serious incidents.
Furthermore, there is the psychological toll of diving with known faulty equipment. Even if the regulator does not fail catastrophically, the knowledge that your life-support device has been flagged by government safety officials can create subconscious anxiety. This mental load can distract you from monitoring your air supply, your depth, and your surroundings, which are already demanding tasks underwater. Ultimately, ignoring this recall transforms a manageable mechanical risk into an unacceptable threat to your life. The remedy is simple: stop using the device and return it. Continuing to dive with it keeps you in the line of fire for a hazard that has already proven it exists.
Staying safe: broader tips
When it comes to high-stakes equipment like scuba diving regulators, relying solely on manufacturer recalls is never enough for true peace of mind. A recall is a critical safety net, but it is reactive by nature—it happens after a defect is identified. The most robust way to protect yourself is to build a proactive maintenance routine that treats your gear with the same respect you give to your dive computer or oxygen tank. Regular inspection and professional servicing are not just recommendations; they are the primary barriers between a safe dive and a dangerous malfunction.
First, understand that diving regulators are mechanical devices subject to wear, corrosion, and internal contamination. Even if your unit is not part of a specific recall, it requires annual service by a certified technician. This isn’t just about ticking a box; it’s about ensuring that the intricate valves, springs, and diaphragms inside the first and second stages are functioning with precision. Over time, O-rings dry out, micro-fractures can develop in metal components, and saltwater intrusion can cause corrosion that is invisible to the naked eye until it causes a failure underwater. A professional service includes disassembly, cleaning, replacement of all wear parts, and pressure testing, which identifies leaks that routine visual checks might miss.
Second, incorporate pre-dive safety checks into your ritual, just as you would check your air supply. While you cannot fix an internal mechanical failure in the water, you can verify that the regulator is breathing freely and that there are no obvious external damages or loose fittings. Practice "free-flow" testing on the surface if you are comfortable doing so, to ensure the valve opens when you inhale deeply. More importantly, buddy check your equipment thoroughly before entering the water. A second pair of eyes can spot issues you might have overlooked, such as a cracked housing or a misaligned hose connection.
Finally, stay informed about industry-wide safety notices and general product recalls. Government agencies like the Consumer Product Safety Commission (CPSC) issue alerts for hazardous consumer goods, but diving-specific hazards are often tracked through professional organizations like PADI, SSI, or NAUI. Subscribe to their newsletters and check their service bulletin sections regularly. Many manufacturers also post voluntary recall information on their websites before it becomes widespread news. By staying engaged with the broader safety community, you ensure that you are aware of emerging risks across your entire kit, not just the brand you currently own. Safety is a continuous practice, not a one-time event.