病毒是纳米级的,医用级别的口罩是使用喷绒布+静电处理+缓释处理才能达到90-95的防护。
所以合格的口罩不是谁都能生产的,而且有保质期!!!
要想办法加静电才行,咋弄?
病毒是纳米级的,医用级别的口罩是使用喷绒布+静电处理+缓释处理才能达到90-95的防护。
所以合格的口罩不是谁都能生产的,而且有保质期!!!
要想办法加静电才行,咋弄?
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