1. Lub teeb yuag: Cov hnab ev khoom hnyav yog ua los ntawm cov khoom siv sib sib zog nqus, uas txo qhov hnyav ntawm lub hnab ev ntawv nws tus kheej thiab ua rau nws tsis hnyav thaum caij tsheb. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov neeg caij tsheb kauj vab uas caij tsheb mus ntev lossis xav tau kev txav mus sai.
2. Compact: Cov hnab ev khoom hnyav hnyav feem ntau muaj cov qauv tsim uas tso cai rau lub hnab ev ntawv kom haum rau lub cev zoo dua thiab txo qhov wobble thiab wobble. Qhov no txhim kho kev ruaj ntseg ntawm kev caij tsheb thiab txo qhov cuam tshuam rau tus neeg caij tsheb lub cev.
3. Ntau yam: Cov hnab ev khoom hnyav yog feem ntau tsim nrog ntau qhov chaw ua haujlwm thiab cov hnab ris kom yooj yim rau cov neeg caij tsheb los txheeb thiab npaj lawv cov iav. Piv txwv li, lub hnab ev ntawv yuav muaj lub tes tsho tshwj xeeb hydration kom yooj yim nqa ntawm lub zais zis hydration; Cov hnab ev ntawv kuj tseem muaj lub hnab tshwj xeeb kom ruaj ntseg kaus mom hlau lossis khau caij tsheb kauj vab, thiab lwm yam.
4. Ua tsis taus pa: Cov hnab ev khoom caij tsheb kauj vab feem ntau yog tsim los nrog cov ntaub ntawv ua pa kom ua pa hauv qab thiab txo hws thiab tsis xis nyob hauv nraub qaum. Qhov no yog qhov tseem ceeb rau kev caij tsheb ntev thiab tuaj yeem txhim kho kev nplij siab.
5. Kev nyab xeeb: Cov hnab ev khoom hnyav hnyav feem ntau kuj muaj cov hlua khi lossis cov cim qhia kom pom kev zoo thiab kev nyab xeeb thaum caij hmo ntuj.