Hot water bottle cover is used to do?
Should be to prevent dirt into. Live in dormitories hukou will sometimes have little bugs.
Made of wooden because wood is soft Is advantageous to the heat preservation Of course as the lid And prevent dust
Already can heat preservation, but also can prevent the intrusion of other bacteria in the air. Also beautiful.
Double, first of all, he had a better thermal insulation effect, double words that layer more tight he leakproof, because it is filled with hot water. That is like some people taking to the outside, still can use cover to drink water.
To prevent dust and water, heat preservation if it almost doesn't work, pot of Dan's vacuum insulation is used to do, in addition of the thermal conductive performance is poor, so choose a cork, also played the heat preservation effect, drink water, can be used to leave out the trouble in addition with a water container, guard against theft is needless to say, and air pressure also has nothing to do.
