Yuav khau perforated rub koj txhais taw

Hnav khau thiab sib tsoo cov taw yog ib qho khoom siv. Qhov loj ntawm cov khau perforated yog qhov loj thiab nyiam hnav. Feem ntau, nws tsis yooj yim rau zom cov ko taw. Yog tias hnav khau perforated thiab sib tsoo cov taw, tej zaum yuav muaj cov laj thawj hauv qab no:
1. Tej teeb meem ntawm tus kheej tej zaum yuav yog tias daim tawv nqaij ntawm ko taw yog qhov muag heev, los yog cov duab ntawm ko taw yuav ua rau puas.
2. Hais txog cov teeb meem khau loj, feem ntau pom zoo kom yuav qhov ntau thiab tsawg rau cov khau perforated. Yog tias qhov loj me dhau lawm, nws yuav thawb tawm ntawm cov ntiv taw, thaum nws loj heev, rub nws yooj yim hnav ntawm pob taws.
3. Cov khau uas tsis zoo perforated yuav khoom muaj cov khoom siv tsis zoo thiab kev ua haujlwm tsis zoo, uas yuav ua rau ko taw puas thaum hnav.
4. Thaum pib ntawm kev hnav khau perforated, tej zaum yuav muaj kev sib txhuam vim tsis xis nyob.
5. Kev hnav cov khau perforated thiab taug kev deb dhau ib zaug tuaj yeem ua rau ko taw puas.