Noise In The Workplace

The Center for Disease Control (CDC) estimates that 22 million workers are exposed to potentially dangerous levels of noise at work every year. That’s “only” about 15% of the total number of people who are employed in the United States, but if you’re one of them, you should absolutely know the risks, and how to protect yourself. Obviously, high noise levels can cause hearing loss, but do you know what else it causes?

  • Cardiovascular disease. Constant noise exposure causes stress, and stress triggers the release of hormones that increase your blood pressure, which can lead to ischemic heart disease, strokes, and arrhythmia.
  • Sleep disruption. Studies show chronic noise exposure during the day can cause difficulty falling asleep, shortened sleep cycles, and frequent wake-ups during the night. All this leads to chronic fatigue and a host of long-term health issues.
  • Immune system suppression. While the exact nature of the relationship is unclear, recent studies have indicated that noise can cause changes in our immune systems.
  • Cognitive impairment: Continued noise exposure causes memory impairment, attention deficits, and reduced concentration.
  • Mental health issues. Not only does continued noise exposure release hormones like cortisol & adrenaline (causing the chronic stress that’ll literally break your heart; see above), it directly influences anxiety, depression, and irritability.
Don’t let this happen to you.

So, how do we protect ourselves? If you said “ear plugs,” you’re not wrong…but did you know that hearing protection in the form of personnel protective equipment (PPE) is considered the LEAST effective method of mitigating noise exposure? The National Institute for Occupational Safety and Health (NIOSH, a sister agency of the Occupational Safety and Health Administration, or OSHA) developed a hierarchy of controls…a “good, better, best” framework, if you will, of methods to address workplace hazards:

Even though hearing protection (the PPE in this case) is least effective, the intent of the hierarchy graphic is not to dismiss it, but to categorize it as a last resort. If all else fails (or, more often, comes up short,) ear plugs are your – and your hearing’s – best friend.

If the source of the noise cannot be eliminated (and let’s face it, an awful lot of industrial processes are necessarily loud), the next best thing to do is to substitute a quieter method or device. That’s where EXAIR comes in: the design of our engineered Air Knives, Air Nozzles, and Air Amplifiers exploits certain principles of fluidics to mitigate the noise levels associated with the rapid depressurization of compressed air when it’s blown for cleaning, drying, cooling, etc. The key to this is entrainment:

EXAIR Intelligent Compressed Air Products such as (left to right) the Air Wipe, Super Air Knife, Super Air Nozzle, and Air Amplifier are engineered to entrain enormous amounts of air from the surrounding environment.

While this entrainment makes EXAIR products EXTREMELY efficient (the compressed air consumption ends up being a fraction of the total developed flow), it also creates a low velocity boundary layer around the primary high velocity & forceful airflow. This layer attenuates the sound level of that high velocity flow.

Compressed air use can be loud, wasteful, and dangerous, but it doesn’t have to be. If you’re looking for a quiet, safe, and efficient solution for your use of compressed air, give me a call.

Russ Bowman, CCASS

Application Engineer
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Dude, Where’s My Safety Air Gun?

I am the poster child for misplaced items. A couple of years back, I lost the key to my truck. I looked for it for WEEKS (it’s not my daily driver) — and finally admitted defeat. A local locksmith offered mobile service, which was kind of expensive but not as bad as I thought, and made me a new key in about a half hour. He actually made two (my wife insisted) and having my truck back just in time for that spring’s mulch was well worth it. Knowing the location of the spare key is nice & comforting too.

Just last fall, I lost my glasses one fine Friday afternoon. I’m only moderately nearsighted, so it was just a mild-to-moderate inconvenience. After a quick trip to the eye doctor and a local business that makes glasses on the same day, I had two new pairs of glasses (my wife, again, insisted on the 2nd pair.) When I got home, my “lost” glasses were on the counter…she’d found them between the arm of the couch and the end table. Ironically, if I’d had a pair of glasses, I’d have found them easily since that’s one of the first places I looked, but was unable to see them with my compromised vision.

Last month, both of those incidents came to mind when the Press Release dropped for a new EXAIR product: our Model 5920 Air Cradle.

EXAIR’s new Air Cradle is a simple but innovative accessory designed to keep safety air guns and similarly sized tools within easy reach at workstations and machine centers.

It’ll hold up to 10lbs, so you can even leave the air supply hose hooked up. Using the Air Cradle means you won’t have to search for your Safety Air Gun, worry about it getting damaged or dropped, and you’ll be one step closer to having a well-organized work space.

Now, I’m not saying that if I had a “truck key cradle” or an “eyeglasses cradle” I wouldn’t have lost my keys or glasses…it’s important to note that one has to actually USE handy organizational tools to be organized…but it would’ve definitely lowered the chances of losing them.

I think it’s also important to note that the Air Cradle came about as a direct result of a customer or two asking about properly stowing their Safety Air Gun. We have regularly scheduled meetings where we discuss calls like that, and the Air Cradle was the direct result of such a conversation. If you have questions about compressed air in general, or EXAIR engineered compressed air products specifically, we’d love to hear from you…whether your call leads to a new product’s development or not!

Russ Bowman, CCASS

Application Engineer
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EXAIR Announces Brand Refresh and Commitment to Service and Innovation

EXAIR, a leader in engineering solutions, today announced the launch of a new brand identity as it enters its next chapter of growth. With this fresh approach, EXAIR has a clear perspective and a focus on what’s ahead. The commitment to forward momentum is backed by years of serving this industry and the promise to continue providing the best compressed air solutions on the market. The new look reflects the same innovation and attention to detail that have defined our approach to engineering and product design since our inception.

For 43 years, EXAIR has built its reputation on engineering excellence, product reliability, and long-term customer partnerships. The new identity reflects the company’s continued investment in innovation and forward-looking strategy, while reinforcing our foundation.

That commitment remains unchanged. The logo is new. EXAIR standards are not. The refreshed brand signals continued growth, expanded capabilities, and a long-term commitment to serving industrial customers with the same quality and responsiveness that built the company’s legacy.

            From Kirk Edwards, President of EXAIR: “I, for one, have been staring at the current EXAIR logo for 26 years – it represents where we came from and the hard work it took to get here. We have gained a lot of trust through performance, reliability, and our customer relationships under that logo. That trust earned will remain because it is, after all, the result of our people, customers, and commitment to doing things the right way. This brand refresh represents our strong and successful past while embracing new customer demands, emerging markets, and changing industries.”

The refreshed brand identity aligns with EXAIR’s forward trajectory and commitment to engineering solutions that deliver measurable outcomes. Customers and partners can expect the same approachable expertise and dependable support that have defined EXAIR’s reputation, now paired with a visual and messaging framework that reflects momentum and innovation. EXAIR will begin implementing the new identity across digital platforms, marketing materials, and product packaging in the coming months and will debut the branding publicly at the upcoming Grainger Trade Show. For more information, visitEXAIR.com or contact the applications engineering team for support and product guidance.

Care and Feeding Of Your Reversible Drum Vac

EXAIR’s Reversible Drum Vac couldn’t be easier to operate. Thread it in to the 3/4 NPT vent connection on your drum lid, install the Standpipe & Hose on the 2 NPT bung, hook up a compressed air line to it, and you’re in business. As long as your compressed air is clean & moisture free, your Reversible Drum Vac will run like new for a long, long time.

Should you start to see a decrease in performance, though, the first thing you’ll want to do is verify the compressed air supply, especially if something’s changed:

  • Did you get a new hose? The Reversible Drum Vac uses 19 SCFM @80psig for rated performance. That’ll require a 3/8″ ID hose, assuming a length of no more than about 20ft.
  • Are there any restrictions in the line? The usual suspects are clogged filters, partially closed valves, or push-to-connect quick-connect fittings.
  • Are there any vacuum leaks in the hose, its cuffs, the drum, or either threaded connection? If the lid’s removable, is that gasket intact?
Pro tip: a pressure gauge, right at the inlet, will give you instant indication of an air supply issue with your RDV (or any compressed air-operated product.)

If you’ve eliminated all of those potential problems, it’s time to take a look at the Reversible Drum Vac itself. The Reversible Drum Vac has tight internal passages that contamination from even the cleanest compressed air systems can build up in, over time. Good news is, we made it super easy to disassemble & clean, and better news: this almost always restores it to as-new performance. We even have a video that walks you through it:

You may be surprised not at how much, but how little contamination you find inside the Reversible Drum Vac. We offer factory refurbishment service for them as well…the procedure in the video is step-by-step what that service consists of, except we also replace the Shim, O-Rings, & Float, and when we reassemble it, we verify performance on the same fixture that every single new Reversible Drum Vac that we build gets tested on. Recently, a customer sent a Reversible Drum Vac in for refurbishment services after we’d spent some time talking on the phone, exchanging emails, and even a brief Engineering Consultation web meeting, troubleshooting their loss of vacuum. I was particularly curious about this one, so when it came in, I tested it (on our calibrated test fixture) for performance, and found it was only generating about 22% of rated vacuum, and only 17% of rated flow. I figured it was clogged (with a capital CLOGGED) so I match marked the body & plug (just like we show in the video) and took it apart:

I was frankly surprised at how little contamination (which appeared to be rust from the customer’s compressed air piping system) caused such a dramatic loss of vacuum.

We then completed the Refurbishment Service and tested it again. Performance was verified to be within specification for a new High Lift Reversible Drum Vac.

I offer to share the Cleaning & Refurbishing video with just about anyone who calls to discuss performance (or lack thereof) of their Reversible Drum Vac. Some still want to send theirs in for Refurbishment Service, and that’s fine. If you have a Reversible Drum Vac that’s not working properly, I’m here to help you get the most out of our products — any of them — give me a call.

Russ Bowman, CCASS

Application Engineer
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