Ib lub hnab mesh feem ntau muaj cov hlua kaw thiab yog ua los ntawm cov khoom ua pa, lub teeb yuag mesh.
Nws tuaj yeem ua ntau yam xws li cylindrical, rectangular, lossis hnab-puab. Kev siv cov hnab mesh me me suav nrog nqa cov txiv hmab txiv ntoo thiab zaub hauv lub hnab yuav khoom, npaj cov khoom siv mus ncig xws li cov khoom siv hauv chav dej lossis cov khoom siv hluav taws xob, khaws cov pob lossis cov khoom ua si me me, thiab khaws cov plhaub lossis lwm yam khoom me me ntawm lub puam.
Ib lub hnab mesh yog yooj yim rau khaws cov khoom me me thiab pom thaum tso cai rau airflow thiab tiv thaiv kev ya raws.