• - In the case of safety goggles and safety glasses, wear them like you wear glasses.
• - Safety goggles should be worn by adjusting their strap.

• - One per person
• - When a user uses a chemical substance or glassware with risk of breakage, he/she should wear safety glasses.

• - Safety glasses: Similar to existing glasses. There is a plastic protective shield on the side
• - Safety goggles: Similar to large swimming goggles for divers. It is less comfortable than safety glasses. Its protective function is better than safety glasses.

• - In this case, a user cannot wear safety glasses, but wear safety goggles on the glasses.
• - Prescription safety glasses can be manufactured and sold. In this case, they should have plastic lens.
    A researcher with existing glasses should wear prescription safety glasses after an eye exam.

• - Contact lenses are prohibited because a component may be caught between the contact lens and the retina.
• - Wear glasses and safety goggles.

• - General safety glasses cannot block ultraviolet rays and lasers.
• - A researcher must wear special safety glasses that can block ultraviolet rays and lasers.

• - Each researcher should have and wear a protective coat, in principle.
• - Researchers should wear their protective coats only in laboratories. They must not wear them outside laboratories like cafeterias because you risk exposing others to the compounds stained on the coats.
• - It is recommended to use cotton protective coats rather than synthetic fiber coats. The latter ones are weak to heat and acid.
• - Protective coats should be fit to a researcher. They should not be too large nor small.

• - There are diverse gloves depending on their use.
• - When handling corrosive compounds, hot objects, cryogenic materials, sharp objects like broken glass pieces, a research should wear suitable gloves before an experiment.
• - Thin polyethylene gloves make hands comfortable, but cannot protect the skin at all because most organic solvents easily penetrate the gloves.
• - Thick synthetic rubber gloves are suitable for handling strong acids or highly corrosive compounds.
    A researcher must wear gloves that can resist heat when touching a hot object.
• - A researcher must wear gloves that can withstand heat when handling cryogenic materials such as liquid nitrogen and dry ice.
• - A researcher must wear gloves that can withstand heat when touching a hot object.
• - A researcher must wear thick gloves when handling cryogenic materials such as liquid nitrogen and dry ice.

• - Wear rubber gloves to make sure they are not punctured.
• - Always be careful not to pollute other areas due to the pollutants in the gloves.
• - When handling highly corrosive chemicals such as strong acids, a researcher should wear a plastic or rubber apron.
• - When cleaning glassware, the glassware may be broken and a researcher may be cut. It is recommended to wear a pair of cotton gloves before wearing gloves for cleaning to prevent accidents.

• - A paper mask can block dust. However, most paper masks cannot protect people from toxic gas at all.
• - A gas mask with a proper cartridge can protect people from dust, acid vapors, carbon monoxide, organic solvents, etc.
• - A gas mask should have a suitable cartridge according to the substance to use.
    For example, a cartridge for organic vapor should not be used to protect from carbon monoxide.

When an excessive noise (85 db or higher) is generated from laboratories, a suitable protective device to protect the ears should be used. The devices are described as follows:

• - Ear plug: It is the simplest protective device against noise.
• - Ear muff: It looks like a headphone. It is very effective against extreme noise and more comfortable than ear plugs.
• - Cotton plug: It hardly blocks noise.
• - When using ultrasonic waves, a researcher must use ear muffs.