Tag: industrial safety air guns

How to Reduce Blowoff Noise and Stay OSHA-Compliant

Published on by Al WooffittLeave a comment

Walk onto almost any factory floor, and you will hear a familiar, high-pitched hiss. Compressed air blow offs are essential for clearing chips, drying parts, and moving materials. However, standard open pipes, copper tubes, and cheap commercial air guns create an incredibly loud, turbulent environment.

If your facility is looking to lower its decibel levels, improve operator safety, and slash energy bills, the solution lies in upgrading to an engineered system like EXAIR Safety Air Guns.

Traditional blow offs—such as a crimped copper pipe or a basic thumb trigger gun—rely on forcing raw compressed air through a large, unrestricted opening. This design creates severe air shear and chaotic turbulence as the fast-moving air slams into the stagnant ambient air.

This turbulence results in two major consequences:

  1. Extreme Decibel Levels: Standard open-ended blow offs easily generate noise levels between 87 dBA to over 104 dBA. Under OSHA Standard 29 CFR 1910.95(a), exposure to these levels without hearing protection can quickly lead to permanent hearing damage or steep regulatory fines.
  2. Energy Inefficiency: Open pipes cause a severe pressure drop across the line, requiring massive amounts of compressed air (often 30 to 50 SCFM) just to maintain basic blowing force.
Hearing loss is the best known, but not the only, ill effect of harmful noise exposure. It can also cause physical and psychological stress, impair concentration, and contribute to workplace accidents or injuries.

EXAIR Safety Air Guns solve the noise problem by replacing this chaotic turbulence with engineered, laminar airflow. Instead of dumping raw compressed air directly into the environment, our guns utilize our specialized Super Air Nozzles. These nozzles eject a small amount of compressed air through a series of precise, engineered slots. This primary airstream creates a powerful vacuum effect that entrains large volumes of the surrounding ambient air.

The entrained ambient air forms a protective boundary layer that cushions the high-velocity core stream. By smoothing out the air shear, the noise level drops dramatically—often down to a whisper-quiet 68 to 82 dBA, well below OSHA’s strict 90 dBA threshold.

To put this into perspective, a decibel scale is logarithmic, meaning every 10 dBA increase represents a perceived doubling of loudness.

In a recent industrial case study, written about here on our blog, a manufacturing plant switched their open-ended blow off guns to the EXAIR Model 1250-12 Safety Air Gun. The results were immediate:

  • Before: Noise levels sat at a deafening 104 dBA while consuming 49 SCFM of compressed air.
  • After: Noise levels plummeted to 82 dBA (a 22 dBA reduction), and compressed air consumption dropped to 35 SCFM.

By making the switch, the factory successfully protected its workers’ hearing and significantly reduced its energy footprint.

In addition to reducing noise, upgrading to engineered guns provides total compliance with multiple other safety regulations:

  • OSHA Dead-End Pressure Compliance (29 CFR 1910.242(b)): If a worker accidentally blocks a standard open pipe against their hand or body, the air pressure can breach the skin and inject into the bloodstream, creating a fatal embolism. EXAIR nozzles are engineered with open aerodynamic profiles that cannot be dead-ended. If blocked, the air safely vents out of the sides, keeping dead-end pressure far below the 30 PSI limit.
  • Flying Debris Protection: When clearing chips from a CNC machine, debris can fly backward at the operator. These guns can be outfitted with clear EXAIR Chip Shields to form a physical protective barrier without blocking the line of sight.

Investing in engineered compressed air tools is a straightforward way to eliminate industrial noise pollution, protect your team, and improve your bottom line. If you would like to discuss how an engineered safety air gun from EXAIR can make a difference in your facility, then give me a call!

Al Wooffitt
Application Engineer

Send me an Email
Find us on the Web
Like us on Facebook
Twitter: @EXAIR_AW

Compressed Air Safety Fundamentals

Published on by jasonkirbyLeave a comment

Safety in the workplace is of paramount importance, and it is widely recognized that annual safety training is a common practice among organizations. A fundamental message from these training sessions is that safety is a collective responsibility, not limited to a select few. At EXAIR, we prioritize safety in all aspects of our operations. Our product line, particularly our Safety Air Guns, exemplifies this commitment, as they are engineered with safety considerations at the forefront. This emphasis on safety is critical, especially given the potential health hazards associated with the improper use of compressed air.

In the United States, the Occupational Safety and Health Administration (OSHA) is responsible for enforcing regulations that promote safe and healthy working conditions. This agency possesses the power to levy significant fines for any infractions. Among the frequent violations related to compressed air are those concerning air guns and blow-off devices, specifically detailed in 29CFR 1910.242(b), which addresses dead-end pressure and chip shielding, as well as 29CFR 1910.95(a), which pertains to permissible noise exposure levels.

The regulation 29CFR 1910.242(b) addresses the use of hand-held tools, particularly emphasizing that blow-off devices must not operate at pressures exceeding 30 PSIG when there is a risk of compressed air becoming dead-ended. In situations where there is no escape route for the air, it poses a serious risk of penetrating the skin and causing an air embolism. A potential remedy is to drill a hole to create an alternative escape route. However, this solution may introduce additional safety hazards, which will be discussed later. EXAIR’s air nozzles are engineered with fins that facilitate safe air escape, thereby preventing skin blockage. Consequently, users can operate the EXAIR Super Air Nozzles at pressures exceeding 30 PSIG with confidence.

The regulation 29CFR 1910.95(a) specifies the permissible sound levels for safe human exposure, emphasizing that extended exposure to elevated noise can result in irreversible hearing loss. However, the cross-drilled nozzle falls short in this regard, as it generates significant noise due to turbulent airflow, despite being suitable for dead-end pressure applications. In contrast, EXAIR’s nozzles are engineered to incorporate ambient air, resulting in a significantly quieter laminar flow. For example, the Model 1210 Safety Air Gun, equipped with the Model 1100 Nozzle, operates at a sound level of only 74dBA, which is comfortably below the noise exposure threshold for an eight-hour work shift.

If you have any inquiries about compressed air safety, or any EXAIR products, please feel free to contact us.

Jason Kirby
Application Engineer
Email: jasonkirby@exair.com
Twitter: @EXAIR_jk

EXAIR is Offering a Promotional Item With Purchase of a Safety Air Gun. 

Published on by John BallLeave a comment

From August 1st to September 30th, 2026, with qualified purchases, EXAIR will be giving away a model 6013SS Stainless Steel Air Jet, a $185.00 value, with a purchase of our Safety Air Guns, including the VariBlast Precision, VariBlast Compact, Soft Grip, Heavy Duty, and TurboBlast Safety Air Guns.  We are promoting the importance of safety in the workplace with the EXAIR Safety Air Guns. 

Compressed air guns are one of the most commonly used pneumatic products in manufacturing plants.  They are used at workstations to blow off debris and clean parts and tools.  Because of the large quantities that are used in a plant, they are the most targeted by OSHA (Occupational Safety and Health Administration).  The majority of the common brands of air guns fail to comply with two common violations, rule 29CFR 1910.95(a) for noise levels and rule 29CFR 1910.242(b) for dead-end pressure.  The reason for this is due to the type of nozzle that comes with the compressed air gun.  OSHA fines can be very expensive, and you can alleviate these penalties by purchasing an EXAIR Safety Air Gun.  Safety is everyone’s responsibility: management, the HSE department (Health and Safety Engineer), supervisors, and even the operators. 

With EXAIR Safety Air Guns, we supply an efficient, effective, and, most importantly, safe air nozzle with all of our air guns.  They are CE Compliant and exceed the OSHA sound level and dead-end pressure requirements, even above 30 PSIG (2 bar).  With substandard air guns, the operators will have to listen to loud noises all day or wear hearing protection.  And for the dead-end pressure, the EXAIR nozzles are engineered to not allow the operator to completely block the end of the nozzle with their hand or skin.  This is very important because if the pressure exceeds 30 PSIG, air can penetrate the skin and cause an air embolism.  With our design, the compressed air is able to escape, and the pressure against the skin will not exceed 30 PSIG, even with the compressed air pressure set at 100 PSIG.  Safety is a major concern for all of our customers and a priority for EXAIR in manufacturing our products. 

As I mentioned above, the nozzles are one of the most significant parts of making a compressed air gun safe and OSHA compliant.  Combining our engineered nozzles with a quality air gun makes the EXAIR Safety Air Guns one of the best products in the market.  We currently have six different styles; the VariBlast Precision, VariBlast Compact, Soft Grip, Heavy Duty, Super Blast, and TurboBlast Safety Air Guns.  These Safety Air Guns are ergonomically designed to comfortably fit in your hand, and they come with quality trigger mechanisms and a durable valve assembly.  The VariBlast Precision Safety Air Guns are great for tight spaces and clearing out small holes.  The VariBlast Compact Safety Air Guns have a cast aluminum body for rugged use with our smaller air nozzles.  The Soft Grip Safety Air Guns provide extra comfort for long, extended uses, and the Heavy Duty Safety Air Guns are rugged, heavy-duty industrial air guns with nozzles for larger forces.  The Super Blast and TurboBlast Safety Air Guns use our largest nozzles for cleaning large areas quickly.  In combination with the EXAIR nozzles, the Safety Air Guns can offer another important attribute; we can save you money!!!  Compressed air is very expensive to make, and with our Safety Air Guns, we use less compressed air but still create a strong blowing force.  We do this by entraining the free ambient air into the air stream.  If you increase the mass of air at the target, it will give you a hard-hitting force to remove debris from surfaces or clean tools and holes.  The amplification ratio can be as high as 25 to 1.  That means that for every one part of compressed air that it uses, the EXAIR Nozzles will entrain 25 parts of free ambient air.  This will add mass to the airstream to give a powerful impact.  Also, the payback period for using an EXAIR Nozzle with our Safety Air Guns can be within weeks due to the savings in electrical costs from your air compressor.  With EXAIR products, we were able to partner with Energy Star and power facilities.  For the amount of energy saved, some power companies offer rebates for using EXAIR products.     

A substandard blow-off gun is unsafe, loud, and wasteful.  EXAIR Safety Air Guns can help improve these situations.  They are OSHA compliant, very safe, and very quiet.  They use less compressed air, which saves you money.  And with a variety of different nozzles, they can better fit your application to decrease downtime.  In the U.S., EXAIR offers a 30-day unconditional guarantee on our cataloged items so you can try them out.  You can see for yourself how effective these compressed air guns can be.  And for a short while, you can receive a promotional gift. If you need help matching the best Safety Air Gun to your application, you can contact an Application Engineer. Remember, safety is everyone’s responsibility.

John Ball
Application Engineer

Email: johnball@exair.com
Twitter: @EXAIR_jb

Press Release: New Air Holster Safety Air Gun Mount

Published on by jasonkirbyLeave a comment

EXAIR has introduced the Model 5930 Air Holster, which offers a practical solution for securely storing Safety Air Guns at various workstations within a facility. This innovative product ensures that operators have a designated spot for their airguns when not in use, thereby reducing the likelihood of misplaced tools and promoting a more organized and efficient work environment. Its thoughtful design makes it particularly suitable for manufacturing, assembly, maintenance, and other industrial settings where Safety Air Guns are commonly utilized.

The Air Holster is designed to firmly attach to any robust magnetic surface, enabling users to swiftly access their tools during the workday. With its full-length front opening, it allows for the easy retrieval and replacement of longer tools and air guns after use. This holster offers reliable storage solutions for demanding industrial settings, presenting an effective method to enhance organization and efficiency in proximity to machinery such as mills, lathes, and cutoff saws.

EXAIR has expanded its range of accessories with the introduction of the Air Holster, enhancing the versatility and convenience of its Safety Air Guns. This new accessory complements existing offerings such as extension pipes for accessing hard-to-reach areas, Chip Shields that safeguard operators from debris, and flexible Stay Set Hoses designed for applications needing frequent adjustments. Additionally, EXAIR provides service kits and replacement parts to ensure the optimal performance of Safety Air Guns. The Air Holster is available for $38.

If you have any inquiries about the Air Holster, or any other EXAIR products, please feel free to contact us.

Jason Kirby
Application Engineer
Email: jasonkirby@exair.com
Twitter: @EXAIR_jk