Heze 3M anti-noise and ear, 3M earplugs, earplugs soundproof earplugs

Heze 3M anti-noise and ear, 3M earplugs, protective earplugs, noise earplugs 1, is not it easier to insert zidan earplugs? Cylindrical expansion after wearing earplugs, thick end will result in the ear canal discomfort? A: The foam ear shape does not affect the insert. As the left picture below, after rubbing, zidan type and cylindrical type earplugs will eventually be twisted into thin strips. Foam earplug in the shape of the ear canal terminus does not affect their comfort. 2, is not the soft touch, the smooth foam earplugs to wear more comfortable? Answer: It is not. Long wearing foam earplugs, depending on the size of their comfort earplug in the ear canal rebound pressure, rather than feel soft and hard, smooth or rough. 3, foam earplugs rebound time and hardness is constant? Answer: It is not. Foam earplugs rebound time is affected by temperature and humidity, in particular polyester (PU) material in the ear. Some customers have found that in the summer 1100 earplugs rebound relatively quickly, earbuds softer; winter rebound slower, ear hard, this is normal. If used in hot and humid environments, PVC foam earplug material has obvious advantages. 4, it can completely soundproof 3M earplugs after use? 3M Earplugs noise can only harm us, reduced to within normal range do not harm our body, the wish to bring earplugs hear anything after, in general, this situation is not achieved. Also wear earplugs method is very important, if not correct wear not achieve a good effect. 5,3M earbuds will not fall into the ears inside out? 3M's design is very user-friendly, you can use it. 6,3M earplugs best suited to those people? (1). Sleep quality is not high, or sensitive to external noise (2) A larger study of ambient noise, the need to protect hearing (3) living in dormitories or sharing one room, sleeping influenced by others (4). In the long-distance passenger Traffic in sleep, such as a sleeper, long-distance buses and aircraft (5). fond of watching all kinds of noise larger events such as F1 (6). frequent high-decibel entertainment air pollution so serious, what "equipment" needed to go out ? Please call on me: respirator glasses in one step! There are earplugs Oh! Jinan, Tai'an Paul-commerce Co., Ltd. Contact: Wang Feifei Mobile: 133-7052-4088 QQ: 731792038 Website: http: //laobao3mjnzd.1688.com Address: Flyover District of Jinan, Shandong Lanxiang Road era headquarters base