3 Flange Ear Plugs

Since its establishment, D & D CHEMICAL INC. has adhered to the concept of quality control and market demand and passed the ISO9001:2015 quality certification in 2019. Over the years, our 3 Flange Ear Plugs have been exported and sold all over the world while also gaining recognition from customers.
Made from eco-friendly and recyclable materials, our

3 Flange Ear Plugs

can be recycled and reused, and are one of the most popular products on the market today. 3 Flange Ear Plugs are washable, reusable, and eco-friendly. While reducing waste and contributing to global sustainability.
  • 3 Flange Ear Plugs - RP-35
3 Flange Ear Plugs
Model - RP-35
RP-35 Three Flange Cone Shaped Reusable Earplug

RP-35 reusable earplugs feature a three-flange and ergonomic design to help fit a variety of ear canals. The special cone design makes the earplug fit the ear canal better and achieve better sound insulation effect. This product has passed the US S3.19-1974 test standard, and the noise isolation rate reaches NRR26dB. These earplugs have a stem grip to help the workers insert without needing to roll down the earplug. RP-35 are ergonomically designed for comfort and sustainable choice for earing protection across a wide range of industries and applications. They are made from a pre-molded washable material and can be cleaned when dirty. Available with or without a cord.

Recommended Industries/Use: Sleeping, Traveling, Construction, Fire, Forestry, Manufacturing, Transportation, Welding, and other industries.
Earplug Color: blue
Model: RP-35 uncord / RP-35C version with cloth cord
Origin: Taiwan
Packaging: Hygienic storage of earplugs in hygiene box or re-sealable bag

Attenuation Values:
Test in accordance with ANSI S3.19-1974
Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8300
Measured Attenuation (dB) 35.1 31.7 34.8 34.2 37.6 39.0 38.2 38.8 41.5
Standard Derivation (dB) 5.1 4.21 4.7 4.2 2.6 4.0 4.4 5.4 4.7
NRR= 26dB

Cleaning and Storage:
  • Keep the earplugs clean and free from material that can irritate the ear canal.
  • Wash reusable earplugs with mild soap and warmwater only. Pat dry with a towel and store when not in use. Do not treat with any other substances, as the earplugs may degrade and compromise effectiveness. With proper maintenance, reusable earplugs can be used daily for 2-4 weeks.
  • Store the earplugs in a cool and dry place. Store them out of the reach of children.


3 Flange Ear Plugs – where innovation meets optimal comfort for a heightened auditory experience. Immerse yourself in a world of tranquility with these earplugs, meticulously crafted for those who seek superior noise reduction without compromising on a tailored fit.

Engineered with a triple-flange design, these earplugs create a secure seal within your ear canal, effectively blocking out unwanted noise. The three-layered flanges adapt effortlessly to your unique ear shape, ensuring a snug fit that remains in place during various activities, from concerts to industrial tasks.

Crafted from premium materials, our 3 Flange Ear Plugs offer not only exceptional noise reduction but also unparalleled comfort. The hypoallergenic silicone guarantees irritation-free wear, making them suitable for extended use without sacrificing performance.

Experience a new dimension of hearing protection with our 3 Flange Ear Plugs. Whether you're a music aficionado, a frequent traveler, or navigating a noisy workplace, these earplugs provide a tailored solution for your auditory well-being. Elevate your sound experience, shield your hearing, and indulge in the luxurious comfort and performance of our 3 Flange Ear Plugs. Your ears deserve the best – choose excellence in noise reduction with our precision-crafted earplugs.
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Products List
RP-33 Three Flange Reusable Earplug RP-33 reusable earplugs feature a three-flange and ergonomic design to help fit a variety of ear canals. RP-33 earplugs have a stem grip to help the workers insert without needing to roll down the earplug. They can be reused repeatedly as they are made from a pre-molded washable material and can be cleaned when dirty. They are a great option and sustainable choice for hearing protection across a wide range of industries and applications. RP-33 are ergonomically designed for comfort and safety and are available with or without a cord. Recommended Industries/Use: Sleeping, Traveling, Construction, Fire, Forestry, Manufacturing, Transportation, Welding, and other industries. Earplug Color: orange (colors can be customized) Model: RP-33 uncord / RP-33C version with cord: PVC or cloth cords available Origin: Taiwan Packaging: Hygienic storage of earplugs in hygiene box or re-sealable bag Attenuation Values: Test in accordance with ANSI S3.19-1974 Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8300 Measured Attenuation (dB) 34.5 31.1 36.8 33.4 35.2 34.3 33.4 31.4 37.2 Standard Derivation (dB) 4.9 4.2 4.7 4.6 3.7 3.9 3.4 3.1 4.1 NRR= 24dB Cleaning and Storage: Keep the earplugs clean and free from material that can irritate the ear canal. Wash reusable earplugs with mild soap and warmwater only. Pat dry with a towel and store when not in use. Do not treat with any other substances, as the earplugs may degrade and compromise effectiveness. With proper maintenance, reusable earplugs can be used daily for 2-4 weeks. Store the earplugs in a cool and dry place. Store them out of the reach of children. Comply with international standards and certificates: US S3.19-1974 test standard EU EN352-2:2020 test standard CE and UKCA certified
New! BioD-101 Sustainable Earplug D&D's mission is to be an earth-friendly neighbor. In recent years, D&D has begun to use recyclable and sustainable packaging materials and can provide different customized needs. At the same time, D&D is also developing new environmentally friendly earplugs to contribute to the sustainable development of the earth. BioD-101 is exactly the new biodegradable earplug that D&D is currently developing and continuously testing. The shape of BioD-101 earplugs are made of three layers of soft and thin umbrella-shaped sheets with a handle, and the earplugs can be easily pushed into the ear canal without kneading up and down with fingers. The three flange earplugs can fit the ear canal, which is comfortable and achieves a good noise isolation effect. The size of the earplugs is suitable for most people. BioD-101 earplugs are made of durable innovative plastic rubber. This means they can be used and cleaned repeatedly without breaking. Compared to disposable earplugs, they are more cost-effective and more environmentally friendly. Another great advantage of BioD-101 is that when they have worn out or expired and must be discarded, they will no longer be left on the earth Instead, they can be gradually decomposed into CO2, CH4, or water by microorganisms in landfills and returned to the cycle of nature. BioD-101 is a durable product that can be stored for up to 3 years under typical storage conditions, unlike other biodegradable plant-based products that have a shorter shelf life. BioD-101 starts to decompose gradually once it is disposed of in a landfill. The biodegradation rate of BioD-101 was observed to be 32.3% after being tested for 386 days in accordance with the ASTM D5511 test standard. Ongoing testing will provide updated biodegradation rates. The BioD-101 is ergonomically designed for comfort and safety and is available with or without a cord. The cord of the earplugs is also made of innovative biodegradable material and comes with a small storage box or reusable bag, which is hygienic and environmentally friendly. In addition, various customized packaging options are also available.
New! HEP-40 Foldable Banded Earplug The HEP-40 features a unique foldable design for easy storage and portability. Through the adjustable earplug pin, the wearer can more accurately adjust the earplugs to a suitable position, fit the ear canal, and achieve the best sound insulation effect. They are ideal for workers who work in noisy environments and require proper hearing protection. One of the main features of the HEP-40 is its ergonomic design. The narrow front and wide rear make it easier for users to push the earplugs into the ear canal, completely isolating the ear canal entrance from external noise and providing excellent noise reduction effects. This design helps block out background noise so you can focus on your work without distractions. Another advantage of the HEP-40 is that the headband prevents dirty hands or dust from contaminating the earplugs, allowing the foam earplugs to be reused throughout the day until they become dirty or need to be replaced. In addition, the HEP-40 plastic headband is reusable and only needs to replace the foam earplugs, which saves cost and is an eco-friendly product. The HEP-40 also comes with replaceable foam earplugs of model EP-40. Overall, the HEP-40 foldable banded earplugs are an excellent choice for anyone looking for portable and convenient hearing protection. With their ergonomic design, soft and hypoallergenic materials, they are sure to enhance your wearing experience. FITTING INSTRCTIONS: In order to achieve the best results, the headband earplugs must be properly worn to provide effective protection. The earplugs must be clean before each use. Put the neckband under the chin. Hold the large ends of the earplugs and swivel them to direct the tips into the ear canal opening. Firmly push and wiggle the pods into the ear canals until a snug seal is obtained. This banded earplug hearing protector is of medium size range type and fits a majority of users.
PRP-22 Reusable Push in Earplugs Features: The PRP-22 earplugs are made of environmentally friendly and hypoallergenic materials. The ergonomic three-flange design can fit the most ear canal, and its soft and thin blades can insert the earplugs into the ear canal with just a slight push. PRP-22 push in earplugs eliminate the hassle of rolling down earplugs for fitting and also reduces the risk of hand-to-ear contamination. Fitting stems help for an easier insertion of the earplugs even when wearing gloves and help keep the earplug clean for workers with dirty hands. Reusable and washable, compared to disposable earplugs, they are a more cost-effective option in the long run. With proper care and maintenance, PRP-22 push in earplugs can last for weeks, which means that you won't have to keep buying new pairs. They can be packed in a small plastic box or a zipper bag, which is more convenient for storage and portability. Fitting Instructions Insert tip into ear canal while pulling ear outward & upward with the opposite hand, then adjust it for greatest noise reduction. Check the fit after inserting earplug. Pull earplug stem gently. Earplug should not come out of the ear easily. If it does, remove earplug & repeat the fitting. Wash the push in earplugs with a clean water and soap when dirty. Replace the earplugs if they are damaged. Benefits of PRP-22 Push in Earplugs No roll down required. Reusable and washable Easy insert the into the ear canal. One size fit most. More cost-effective option in the long run