Welcome to the company, we have many years of professional experience!
Chat
Online
Inquiry
Home > It is necessary for safety helmet

It is necessary for safety helmet

Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.

Why Choose Us
Solutions to meet different needs

We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.

Highly specialized team and products

Professional team work and production line which can make nice quality in short time.

We trade with an open mind

We abide by the privacy policy and human rights, follow the business order, do our utmost to provide you with a fair and secure trading environment, and look forward to your customers coming to cooperate with us, openly mind and trade with customers, promote common development, and work together for a win-win situation.

24 / 7 guaranteed service

The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems

Get in touch with usCustomer satisfaction is our first goal!
Email us
— We will confidentially process your data and will not pass it on to a third party.
It is necessary for safety helmet
Earplug & Noise Reduction Ratings Explained
Earplug & Noise Reduction Ratings Explained

Ear Plugs, Noise Reduction Noise Reduction Ratings Explained Noise Reduction Rating (NRR) is a unit of measurement used to determine the effectiveness of hearing protection devices to decrease sound exposure within a given working environment.

Knops Earplugs – Acoustic Adjustable Hearing Controls (REVIEW)
Knops Earplugs – Acoustic Adjustable Hearing Controls (REVIEW)

Basically, the Knops ,Earplugs, are ,acoustic, adjustable hearing controls that allow users to easily and conveniently reduce any of their surrounding noise in just four steps. The Knops are the first-ever analog hearing solution that is adjustable in multiple sound-level settings (meaning different dB levels).

Vibes Acoustic Filter Ear Plugs - High Fidelity Decibel ...
Vibes Acoustic Filter Ear Plugs - High Fidelity Decibel ...

Vibes ,Acoustic, Filter ,Ear Plugs, - High Fidelity Decibel Reducing ,EarPlugs, for Music Concert Festivals- Hearing Protection for Tinnitus & Autism Sensory Processing Disorders - (As Seen on Shark Tank): Amazon.ca: Health & Personal Care

Can any type of ear plugs prevent an LRAD (long range ...
Can any type of ear plugs prevent an LRAD (long range ...

No. Not in the slightest. Those things are the worst. Back when I was in Iraq on our second deployment I was assigned to a Entry Control Point where my squad had to ...

7 Different Types of Earplugs and What They Are Used For ...
7 Different Types of Earplugs and What They Are Used For ...

Music ,earplugs, attempt to provide a more even noise reduction across the frequency range. Most music ,earplugs, employ an ,acoustic, filter to accomplish this. What’s more, some models come with multiple filters with different noise reduction ratings, allowing you …

The 5+ BEST Motorcycle Earplugs (Reviews) in 2020 | R+R
The 5+ BEST Motorcycle Earplugs (Reviews) in 2020 | R+R

Eargasm High-Fidelity ,Earplugs, (Best Motorcycle ,Ear Plugs, For Wind Noise) The Eargasm High-Fidelity ,Earplugs, are another great choice if you’re looking for reliable motorcycle ,ear plugs, for noise reduction while riding. I love the silicone design of this ,earplugs, and how easy they are to use.

How to buy the best filtered earplugs | CHOICE
How to buy the best filtered earplugs | CHOICE

The Crescendo DJ ,earplugs, for example, have an NRR rating of 10dB, an SNR of 17dB, and an unspecified rating of 20dB. Because of this, we worked with the National ,Acoustic, Laboratories (NAL) and the HEARing Cooperative Research Centre (co-founders of …

AcousticSheep
AcousticSheep

AcousticSheep® is an award-winning company based in Erie, PA. The founders, Wei-Shin Lai, MD, and Jason Wolfe (wife and husband) started the company in …

Vibes Hi-Fidelity Earplugs review | TechRadar
Vibes Hi-Fidelity Earplugs review | TechRadar

The Vibes ,earplugs, look like a pair of earbuds but without a cable attached to them. The white silicone ear tips are attached to a short stem, which houses an ,acoustic, filter and have a clear chamber.

Do You Want Earplugs with Your Soup? - acoustics.com
Do You Want Earplugs with Your Soup? - acoustics.com

The Importance of Acoustics in Restaurants: Do You Want ,Earplugs, with Your Soup article provides architects, interior designers & contractors with explanations & information about the effects of noise & acoustics on health, safety & comfort in restaurants.

Earplug & Noise Reduction Ratings Explained
Earplug & Noise Reduction Ratings Explained

Ear Plugs, Noise Reduction Noise Reduction Ratings Explained Noise Reduction Rating (NRR) is a unit of measurement used to determine the effectiveness of hearing protection devices to decrease sound exposure within a given working environment.

AcousticSheep
AcousticSheep

AcousticSheep® is an award-winning company based in Erie, PA. The founders, Wei-Shin Lai, MD, and Jason Wolfe (wife and husband) started the company in …

The 7 Best Earplugs for Sleeping & What to Look For
The 7 Best Earplugs for Sleeping & What to Look For

Low-tech foam ,earplugs, are still considered by many to be the most effective type at blocking out noise. To use foam ,earplugs, effectively, you’ll need to fit them appropriately in your ear.

Soundproof earplugs for complete silence
Soundproof earplugs for complete silence

Foam ,earplugs, Foam ,earplugs, completely close off the ear and attenuate a reasonable amount of noise. They are not reusable and do not fit perfectly. As a result, they do not sit well for long. And that in turn affects the degree of attenuation. Filter ,earplugs, Universal filter ,earplugs, attenuate noise without making you feel shut out.

Can any type of ear plugs prevent an LRAD (long range ...
Can any type of ear plugs prevent an LRAD (long range ...

No. Not in the slightest. Those things are the worst. Back when I was in Iraq on our second deployment I was assigned to a Entry Control Point where my squad had to ...

Soundproof earplugs for complete silence
Soundproof earplugs for complete silence

Foam ,earplugs, Foam ,earplugs, completely close off the ear and attenuate a reasonable amount of noise. They are not reusable and do not fit perfectly. As a result, they do not sit well for long. And that in turn affects the degree of attenuation. Filter ,earplugs, Universal filter ,earplugs, attenuate noise without making you feel shut out.

Knops Earplugs – Acoustic Adjustable Hearing Controls (REVIEW)
Knops Earplugs – Acoustic Adjustable Hearing Controls (REVIEW)

Basically, the Knops ,Earplugs, are ,acoustic, adjustable hearing controls that allow users to easily and conveniently reduce any of their surrounding noise in just four steps. The Knops are the first-ever analog hearing solution that is adjustable in multiple sound-level settings (meaning different dB levels).