Pull up the two plastic lock of the carrier body , and then
open the lid of carrier.
Pour water into the ice packs until it reaches the pouring line, tighten the bottle lid, then put them in refrigerator or ice cabinet with the temperature below -10 degree for keeping cold more than eight hours
Put vaccines into the empty cell formed by orderly aligned ice packs, put correctly on them foam insulating flats press tighten the carrier lid pull down the lock buttons then carry it for use.
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