1. Preliminary Procedures for Use of the E-A-RTONE®3A

Initially examine the ear canal for obstruction(s) and evaluate the proper size E-A-RLINK®disposable foam eartip needed to fit the particular ear canal. Although the standard E-A-RLINK®3A fits most ear canals, for smaller ear canals, the smaller diameter E-A-RLINK®3B eartips are available. It is important to obtain a good seal and achieve the proper insertion depth. Insertion procedures are the same for the E-A-RLINK®3A and E-A-RLINK®3B, but deep insertion may be difficult to achieve in extremely small ear canals. In these instances, a shallow placement will have to suffice.

Secure the section of black tubing, which protrudes from the

E-A-RLINK®eartips to the sound tube nipple located at the end of the E-A-RTONE®sound tube.

Slowly roll the E-A-RLINK®tip into the smallest diameter possible and insert the E-A-RLINK®well into the ear canal (see illustrations).

Since the eartips are 12 mm long, the correct insertion depth into the ear canal is obtained when the rear edge of the E-A- RLINK® is

2-3mm inside the entrance of the ear canal.

Hold E-A-RLINK®in ear canal until expanded.

After the test is completed, remove the E-A-RLINK®eartips and replace with a new pair for the next subject.

E-A-RLINK®

Full InsertionShallow Insertion

Proper insertion depth is necessary to achieve maximum ambient noise attenuation and interaural attenuation. The graph below depicts interaural attenuation as a function of insertion depth. The described interaural attenuation is obtained for each ear in which the E-A-RLINK®is fully inserted, regardless of whether it is the “sending” ear or “receiving” ear.

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AOSafety E-A-RTONE 3A manual Preliminary Procedures for Use of the E-A-RTONE3A, Rlink
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E-A-RTONE 3A specifications

The AOSafety E-A-RTONE 3A is an advanced respiratory protective device designed for individuals working in environments where airborne hazards are present. Renowned for its effectiveness and comfort, the E-A-RTONE 3A is a favored choice among professionals in various industries, including construction, manufacturing, and chemical handling.

One of the standout features of the AOSafety E-A-RTONE 3A is its high filtration efficiency, which is crucial for providing reliable protection against particulate matter, dust, and other harmful airborne substances. The respirator is equipped with P100 filters that capture at least 99.97% of airborne particles, making it suitable for use in environments with higher levels of hazardous dust and aerosols.

The design of the E-A-RTONE 3A emphasizes user comfort, allowing for prolonged wear without discomfort. The adjustable head straps ensure a secure fit, while the soft, foam-rubber face seal conforms to the contours of the wearer’s face, reducing leakage and providing a tight seal against contaminants. This ergonomic design minimizes fatigue, enabling users to maintain focus on their tasks without the distraction of an uncomfortable respirator.

The E-A-RTONE 3A is also designed for versatility. It can accommodate various filter and cartridge types, depending on the specific requirements of the work environment. This adaptability makes it a go-to choice for users who may encounter different types of hazards or who work across various settings.

In addition to its protective features, the AOSafety E-A-RTONE 3A boasts an easy-to-use exhalation valve. This mechanism minimizes heat and moisture buildup inside the respirator, enhancing overall comfort during extended use. The valve facilitates exhalation while preventing the ingress of contaminants, thereby maintaining a clear respiratory path.

Moreover, the lightweight construction of the E-A-RTONE 3A ensures that it does not add unnecessary strain on the wearer. It’s designed to facilitate ease of movement, which is essential in active work environments. Users can wear it alongside safety goggles and other personal protective equipment, making it a versatile asset in any safety attire.

Overall, the AOSafety E-A-RTONE 3A combines high-efficiency filtration, comfort, and versatility, making it an excellent choice for anyone seeking reliable respiratory protection in potentially hazardous environments. Whether for professional use or DIY projects, this respirator stands out for its commitment to safety and user satisfaction.
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