Blood is a fluid connective tissue that performs many functions in the body. It carries oxygen and nutrients to the cells, hormones (chemical messengers) to the tissues, and waste products to organs that remove them from the body.
A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks. Wash bottles using in laboratories. Wash bottles are sealed with a screw-top lid.
In addition, refillers are often advocates for the environment. Washing and reusing those bottles might help to cut down on waste and landfill. The jury's still out, however, about which is worse: contributing to landfill, or using natural resources for the washing and adding detergents to our water supply.