75% kev quav cawv tsis tu ncua cov ntaub so ntub dej ntub dej ntub dej ntub dej ntub dej ntub dej wipes

Cov lus piav qhia luv luv:

1. Portable tsim, haum rau kev mus ncig, tsev neeg, ob tog, thiab lwm yam.
2. Siv rau sab hauv tsev, khoom siv sab nraum zoov, ntxuav tes, khoom tu, thiab lwm yam.
3. Cov txiaj ntsig huv huv, mos thiab hnav-resistant.