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.
National standard for safety helmet and safety belt
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.
Professional team work and production line which can make nice quality in short time.
The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
A second path for bone conduction is into the middle ear. The ossicles ,have, a resonance frequency of around 1700 Hz. Bone conducted ,sound, also excites these little bones. It is assumed that for ,sound, around the resonance frequency the middle ear pathway becomes dominant and limits how much noise reduction ,earplugs, and earmuffs can provide.
2/6/2020, · The MAX-1 ,Earplugs have, a noise reduction rating (NRR) of 33, placing them among the highest-rated ,earplugs, sold today. These ,earplugs, are designed for one-time use. They are sold in packs of 20 to 200 with a per-pair price-point of roughly 20 to 25 cents, depending on the quantity.
19/9/2020, · The Anbow Silicone ,Ear Plugs, are a good choice for people who enjoy ,earplugs, that ,have, a flange tip and elongated tab that makes them easy to pull out of your ear. The pair that come with a built in cord are ideal if you find ,earplugs, falling out at night when you toss and turn in bed and then it makes them hard to find.
SoundOff ,earplugs, are also unique in that they utilize patented SnoreMasking technology, making them far more effective than ,earplugs, that simply try to block out the ,sound, of snoring. Pink noise, the intuitive masking technology of SoundOff, is superior to the traditional White Noise, which must be played at loud volumes to reach the necessary level to block the ,sound, of snoring.
Vibes Acoustic Filter ,Ear Plugs, . The Vibes ,earplugs, offer a filtered experience that doesn’t force you to compromise the quality of the acoustic ,sound, you hear. These ,have, an attenuating filter that can lower the volume without making everything ,sound, like white noise.
Many clubs ,have sound, levels above 100dB, which gives you even less than 15 minutes of safe exposure time. The earplug should get the exposure level down to a safe zone, which is at or below 85 dB. This means that a weak earplug with 15 dB ,sound, reduction is sufficient for a quieter club with 94 dB noise, because 79 is below 85dB (94-15=79).
The Audiopure ,Ear Plugs have, been professionally made to filter out any unwanted ,sound, when you are either playing an instrument or out in a loud environment. They provide perfect safety for your ears that protects the eardrum from loud sounds that can actually damage your hearing over time.