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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.

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01
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.

02
Highly specialized team and products

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

03
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.

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

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china hat bend or
How to Choose Shooting Earmuffs: Selection Guide
How to Choose Shooting Earmuffs: Selection Guide

Noise Reduction, Rating. ,Noise Reduction, Rating (NRR) is the hearing protection rating method used in the U.S. The current range of NRR available in the U.S. market extends from 0 to 33 dB. The NRR is derived from an involved calculation that begins with attenuation test results from at least ten laboratory subjects across a range of frequencies.

Active Noise Reduction Safety Earmuff - Aircraft Spruce
Active Noise Reduction Safety Earmuff - Aircraft Spruce

typically dominated by ,low, frequencies—frequencies that cannot be stopped by passive ,earmuffs,. In addition to the detrimental effect it has on hearing, ,low,-,frequency noise, creates another, perhaps even more serious effect. Because ,low,-,frequency noise, masks speech, it is difficult for a person to hear and comprehend speech and warning signals ...

5 Best Shooting Earmuffs - Nov. 2020 - BestReviews
5 Best Shooting Earmuffs - Nov. 2020 - BestReviews

Noise reduction, rating (NRR) You can use a product’s NRR, or ,Noise Reduction, Rating, to judge the effectiveness of shooting ,earmuffs,. Subtract seven from the NRR, then divide by two to find out how many decibels the ,earmuffs, cancel out. For example, an NRR of 37 will cancel 15 decibels.

Best Safety (Noise Reduction) Ear Muffs 2018: Reviews & Guide
Best Safety (Noise Reduction) Ear Muffs 2018: Reviews & Guide

Best Safety (,Noise Reduction,) ,Ear Muffs, 2018: Reviews & Guide There was a time when ,earmuffs, were only meant for people working in high ,noise, environments such as construction sites, airports, and factories but nowadays even ordinary office goers are looking for ways to protect their hearing from getting damaged.

Low price Peltor H6A/V Optime Noise Reduction Earmuff ...
Low price Peltor H6A/V Optime Noise Reduction Earmuff ...

15/6/2011, · Peltor H6A/V Optime ,Noise Reduction Earmuff, Overviews. Peltor Optime 95 ,Earmuffs, are lightweight, ,low, profile ear cups. Optime Peltor 95 ,Earmuffs, have a ,noise reduction, rating (NRR) of 21. Peltor Optime 95 Black ,Earmuffs, fit well with most helmets, eyewear and other safety equipment. Optime 95 ,Earmuffs, are available in

Hearing Protection from Combining Earmuffs with Earplugs ...
Hearing Protection from Combining Earmuffs with Earplugs ...

In a ,low,-,frequency, setting, you will need higher protection. The lower the ,frequency,, the more you are going to have to up your protection. When it comes to earplugs, you can purchase ones with up to 36 NRR. With ,earmuffs,, the highest level of protection is 37 dB (Amazon link).

Do Noise Cancelling Headphones Protect Hearing?
Do Noise Cancelling Headphones Protect Hearing?

Ear Muffs, vs Passive ,Noise, Cancelling Headphones. From a hearing protection perspective, ,ear muffs, can perform the same as passive ,noise, cancelling headphones. Both are good for protection against high-,frequency, noises such as people talking and babies crying. Both will not be great for engine noises and ,low,-,frequency, bass from speaker systems.

PA4000 Noise Buster Electronic Noise Canceling Safety Earmuff
PA4000 Noise Buster Electronic Noise Canceling Safety Earmuff

Benefits Hearing protection: Experience ,noise reduction, across the full range of frequencies Safety: Critical speech communications are heard more clearly Usability: Listen to music or radio communications at lower, less damaging volumes Wearability: Over-the-head or behind-the-head in a single style Durability: Tough ABS plastic molded ,earmuff, and headband Comfort: Soft, pliable …

Technical Datasheet
Technical Datasheet

reduction, for ,noise, with L C – L A = +2dB) L = ,Low,-,frequency, attenuation value (predicted ,noise, level ,reduction, for ,noise, with L C – L A = +10dB) SNR = Single Number Rating (the value that is subtracted from the measured C-weighted ,sound, pressure level, L C in order to estimate the effective A-weighted ,sound, pressure level inside the ear).

8 Best Bluetooth Hearing Protection (2020) - Headphonesty
8 Best Bluetooth Hearing Protection (2020) - Headphonesty

13/7/2020, · With an NRR rating of 29dB, these ,ear muffs, provide the highest ,noise, protection in this list. Its NRR value is tied with the Mpow HP102A, an item that you’ll see later on within the list. With these on, you can be sure that you’re getting the efficient ,noise reduction, you need in order to keep safe during your everyday noisy activities.

Hearing Protection from Combining Earmuffs with Earplugs ...
Hearing Protection from Combining Earmuffs with Earplugs ...

In a ,low,-,frequency, setting, you will need higher protection. The lower the ,frequency,, the more you are going to have to up your protection. When it comes to earplugs, you can purchase ones with up to 36 NRR. With ,earmuffs,, the highest level of protection is 37 dB (Amazon link).

Top 10 Best Shooting Ear Protection | Hearing Protection ...
Top 10 Best Shooting Ear Protection | Hearing Protection ...

2.9 Mpow ,Noise Reduction, Safety ,Ear Muffs, ... ,Low frequency, turned the ,noise, into a clean natural ,sound,. The response time of this ,ear muff, is only 0.02 second. Two 2 AAA batteries are included with the ,earmuff,. The cups are covered by Ultra-Thin Rubberized.

Impact Sport BOLT Electronic Earmuff | Howard Leight ...
Impact Sport BOLT Electronic Earmuff | Howard Leight ...

The Impact Sport BOLT Shooting ,Earmuff, features a ,Noise Reduction, Rating (NRR) of 22dB for ear protection. All Howard Leight ,earmuffs, and safety eyewear are compatible for use with each other. What does ,Noise Reduction, Rating (NRR) mean? ... (AFC) which lets in ,low frequency, conversation while protecting against high ,frequency, gunshots.

Active Noise Reduction Safety Earmuff
Active Noise Reduction Safety Earmuff

typically dominated by ,low, frequencies—frequencies that cannot be stopped by passive ,earmuffs,. In addition to the detrimental effect it has on hearing, ,low,-,frequency noise, creates another, perhaps even more serious effect. Because ,low,-,frequency noise, masks speech, it is difficult for a person to hear and comprehend speech and warning signals ...

Noisebuster safety earmuffs | Aviation Pros
Noisebuster safety earmuffs | Aviation Pros

The Noisebuster Active ,Noise Reduction, Safety ,Earmuff, is a professional-grade hearing protector. It has been specifically designed to cancel the ,low,-,frequency noise, generated by equipment such as ...

10 Best Hearing Protection for Construction Reviewed ...
10 Best Hearing Protection for Construction Reviewed ...

3/11/2020, · Lastly, I intend to recommend the Peltor H6A\V Optime 95 ,Noise Reduction Earmuff,, which is another over-the-head hearing protector from the trusted 3M brand. This boasts of an amazing 21-decibel ,noise reduction, rating. It can also withstand ,noise, levels up to a maximum of 95 decibels.

Top 10 Best Shooting Ear Protection | Hearing Protection ...
Top 10 Best Shooting Ear Protection | Hearing Protection ...

2.9 Mpow ,Noise Reduction, Safety ,Ear Muffs, ... ,Low frequency, turned the ,noise, into a clean natural ,sound,. The response time of this ,ear muff, is only 0.02 second. Two 2 AAA batteries are included with the ,earmuff,. The cups are covered by Ultra-Thin Rubberized.

Best Safety (Noise Reduction) Ear Muffs 2018: Reviews & Guide
Best Safety (Noise Reduction) Ear Muffs 2018: Reviews & Guide

Best Safety (,Noise Reduction,) ,Ear Muffs, 2018: Reviews & Guide There was a time when ,earmuffs, were only meant for people working in high ,noise, environments such as construction sites, airports, and factories but nowadays even ordinary office goers are looking for ways to protect their hearing from getting damaged.

Selection of Hearing Protection - Health and Safety ...
Selection of Hearing Protection - Health and Safety ...

Active ,noise reduction, (ANR) ,ear-muffs,. Active ,noise reduction, (ANR) ,ear-muffs, are hearing protectors that incorporate electro-acoustic devices designed to partially cancel incoming ,sound, to improve further the protection of the wearer. They are suitable for ,low frequency noise, with high ,sound, pressure levels.