Cov dej khib nyiab diffuser, qhov sib sib zog nqus dej diffuser rau ob txheej dej phwj tawm hauv cov dej ntws, muaj cov yeeb nkab loj tawm los ntawm cov yeeb nkab txuas thiab ob lub kav dej sab saud thiab qis. Cov dej phwj nkag mus rau sab saud thiab qis diffuser kav los ntawm cov yeeb nkab txuas, thiab cov dej phwj tuaj ntawm cov yeeb nkab diffuser Cov kav dej sib txuas txuas nrog lub qhov dej ntws tawm mus rau hauv tus dej kom ua tiav kev siv qhov tob ntawm tus dej thiab nce qhov dilution ratio ntawm dej phwj tuaj.
Qhov sib sib zog nqus dej diffuser yog teem rau perpendicular mus rau cov kev taw qhia ntawm dej ntws. Muaj ntau cov dej phwj tuaj rau ntawm sab sauv thiab sab qis diffusers. Txhua lub nozzle yog nruab nrog cov yeeb nkab sib txawv, thiab cov yeeb nkab loj thiab cov kav dej sab saud thiab sab qis yog tag nrho ruaj nrog kev txhawb nqa. Nws cov duab yog linear, L-puab thiab Y-puab.