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发帖数: 2201 | 3 If your site lense is made of polycarbonate, should be sufficient. The eye-
protection wears are also made from the same material:
http://en.wikipedia.org/wiki/Polycarbonate
It's anti high impact, many lab tools are made of it too, such as
ultracentrifuge bottles.
You can find cheap and good nose reduction ear protections in walmart,
around $10 for -31dB. Do not buy those expensive electronic noise
cancellation muffles, useless. If you want even better reduction, get the
foamy eye plugs, use them inside your ear muffles, you will find very
effective. |
