Protecting Employees With PPE vs. Engineered Controls and Substitution

PPE has been a hot topic and new buzzword for a lot of people and throughout many industries over the past 6 months, and rightfully so. When you look at manufacturing though, PPE has been a buzzword for decades. We continue to evolve processes, equipment, and wearables to ensure the safety of operators.  It all boils down to the fact that PPE and the equipment have to be used, and used appropriately in order to be effective.

When reviewing the CDC’s guides for Hierarchy of Controls the least effective method to protect workers is PPE that they must implement and wear/use properly. The fact is, PPE is one of the cheaper entry levels to get to safe working conditions upfront. However, the cost of ownership can quickly surpass more effective methods of providing safe conditions for operators, such as installation of engineered controls or even substituting the hazard w/ engineered solutions.

CDC’s Hierarchy of Controls

 

So what exactly does that mean to the people on the shop floor? Rather than having to grab a set of pinch and roll earplugs every day on the way through the breezeway to get to the production line, permanently installing quiet products like Super Air Nozzles or Super Air Knives in place of open-ended pipes and drilled pipe blowoffs could eliminate the need for these uncomfortable nuisances. And reliance on personnel to use them correctly, or use them at all is a gamble.

How else can EXAIR help in this pursuit of operator safety and happiness? We offer a free service, the EXAIR Efficiency Lab, which will test your current blow-off products for force, flow, air consumption and noise level. We then recommend an engineered solution if we can improve upon those parameters (spoiler alert, we can) that will meet or exceed OSHA standards for dead-end pressure and allowable noise level exposure.

EXAIR’s Free Efficiency Lab

For this example, installing a quiet product to aid in lowering noise levels can create an environment that no longer needs PPE for protecting personnel. The fix is permanent and eliminates forgotten, lost or broken PPE and the expensive associated with them.

If you would like to discuss any of these options further, please let me know.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

 

Engineered Air Nozzles Reduce Noise Levels and Outlet Pressure, Meeting OSHA Requirements

“My operators are complaining that our air guns are too loud, how can you help me?” – is a very common inquiry we receive here at EXAIR on almost a daily basis. Many open end blowoffs or air guns fitted with nozzles that have cross drilled relief holes create high pitch wind shear, resulting in excessive noise levels, sometimes exceeding 100+ dBA. This not only is a safety concern but also an OSHA violation.

Variety of Air Nozzles that produce dangerously loud noise levels

Loud noises and the length of exposure time can lead to significant health concerns such as long term hearing loss, increased stress levels and potential injury due to lack of concentration. The Occupation Safety and Health Administration (OSHA) introduced Standard 29 CFR 1910.95(a) as a way to protect workers from job related injuries associated to potentially dangerous sound levels. Per the Standard, at 90 dBA an operator is limited to a maximum of 8 hours of constant exposure. As noise levels increase, the allowable exposure time decreases, in some cases slowing production, costing a company on their bottom line.

 

EXAIR’s Air Nozzles are engineered so they entrain surrounding air across the profile of the nozzle, which produces a smoother airflow, ultimately reducing wind shear, resulting in much lower sound levels, meeting the OSHA Standard.

Illustration showing the air travel of our Super Air Nozzles

 

In addition, our Air Nozzles also meet the OSHA Standard 1910.242(b) for 30 PSI dead end pressure. All of our engineered Air Nozzles provide a relief or a safe path for the air to exit if the nozzle were to be blocked or pressed against an operator’s body so the exiting air pressure will never reach 30 PSIG.

All of EXAIR’s Air Nozzles are available with standard NPT threads to easily adapt to existing air guns. We also off our full line of Safety Air Guns which are fitted with our engineered nozzles, providing an “off-the-shelf” OSHA compliant solution. For help selecting the best product to replace your existing device or if you have a new application you would like to discuss, give us a call at 800-903-9247.

Justin Nicholl
Application Engineer
justinicholl@exair.com
@EXAIR_JN