(1) Sab hauv qhov siab: xws li los ntawm cov qauv tsim qis tsawg dua 1 meter kom sawv ntsug qhov chaw ntau tshaj 2 meters. Nce qhov siab yuav txhim kho kev nplij siab tab sis tseem cuam tshuam kev ruaj khov thiab qhov hnyav.
(2) pem teb cheeb tsam: Ib lub tsev pheeb suab ntaub feem ntau yog 1.5-2 square metres, thiab tsev neeg muaj peev xwm ncav cuag ntau dua 10 square metres. Nws yuav tsum raug sau tseg tias cov neeg nominal tus naj npawb ntawm cov neeg feem ntau yog hais txog lub peev xwm hauv lub xeev kev pw tsaug zog.
(3) Cov Cheeb Tsam antchamber: muab cov khoom siv cia thiab chaw khaws khoom noj, nrog thaj chaw li 0.5 square metres rau ob peb square metres. Qee cov qauv tsim siv nthuav dav tsev ua kom muaj ntau - chaw haujlwm.
(4) Sab Hauv Txheej Sab Hauv: suav nrog kev sib faib ntawm cov chaw pw tsaug zog, thaj chaw ua haujlwm thiab thaj chaw cia khoom. Qee lub tsev pheeb suab loj siv ntau-} chaw tsim qauv kom tau ua kom tau raws li cov tsev neeg sib txawv ntawm tsev neeg lossis pab pawg.
