Roj hmab poob siab absorbers thiab caij nplooj ntoos hlav poob absorbers yog dav siv nyob rau hauv kev ua lag luam. Txawm hais tias tus qauv tsim cov khoom sib txawv heev, qhov kawg nyhuv yog tshem tawm poob siab thiab poob siab. Thaum xaiv kev poob siab absorbers, ntau tus neeg kuv tsis paub twg xaiv ib tug. Nyob hauv qhov tseeb, kom nkag siab tias cov khoom siv ntxaum los xaiv, koj yuav tsum to taub lawv qhov zoo thiab qhov tsis zoo.
