1, Ib lub tshuab tuaj yeem ua tiav kev xaws ntawm cov pos thiab cov plaub hau ntawm velcro, nws tuaj yeem ua haujlwm ib puag ncig. Yog li cov khoom tuaj yeem xaws tau ib zaug, zam kev sib sau ua ke ntawm cov khoom tiav ib nrab.

2, Qhov pub mis yog ruaj khov thiab cov xov zoo nkauj. Tus neeg teb xov tooj tsuas yog yuav tsum muab cov ntaub thiab xaws yooj yim.

3, Los ntawm kev hloov lub pwm, txiav ntawm cov ces kaum sab xis, cov ces kaum puag ncig thiab cov ces kaum tshwj xeeb tuaj yeem ua tiav.

4, Cov khoom no muaj ntau yam kev siv thiab yooj yim kho. Siv dav hauv cov chaw tsim khoom xws li cov khaub ncaws cuam tshuam, hnab, khaub ncaws, cov khoom siv sab nraum zoov, tsev pheeb suab, thiab lwm yam.