1. Chemical Corrosion Resistance: The lenses are typically fabricated from polycarbonate or specific plastics, capable of withstanding the corrosion of acids, alkalis, and other chemical substances.
2. Splash Prevention: The snugly-fitted design can prevent liquid splashes from entering the eyes.
3. UV and Laser Protection: Certain laboratory goggles possess UV protection functionality and can even filter specific wavelengths of laser light, being suitable for optical experiments.
4. Impact Resistance: The lenses and frames exhibit a certain level of impact resistance, capable of preventing eye injuries caused by accidental impacts.
5. Anti-Fog Function: Some goggles feature an anti-fog coating, ensuring a clear field of vision even in humid environments.

Precautions:

1. Choose the appropriate goggles: for chemical experiments, select corrosion-resistant goggles; for laser experiments, choose goggles with specific wavelength protection; for biological experiments, pick goggles with good sealing. Select goggles that meet ANSI Z87.1 or EN 166 standards. Ensure they fit the face shape, are comfortable to wear, and have good sealing.
2. Wear them correctly, ensuring a tight fit to prevent liquids or particles from entering. Adjust the headband to be neither too tight nor too loose. Avoid interference from hair or clothing that could affect the seal.
3. Prevent contamination or scratches. Be mindful of the surrounding environment during operation. Goggles cannot replace other safety measures.
4. After use, wipe with warm water and a neutral detergent. Disinfect after contact with biological samples using ultraviolet light or a dedicated disinfectant. Use a soft cloth for cleaning.
5. Store in a dry and clean place. Prevent lens deformation or damage. Regularly check the lenses and frames; replace if damaged.
6. Use anti-fog agents or sprays. Rinse immediately with clean water after contact with chemicals. Ensure laser protection lenses match the experimental wavelength.
7. Ensure they effectively prevent liquids or particles from entering. Check for no scratches, stains, or fog. Ensure the headband is neither too tight nor too loose.
8. For high-risk experiments, use goggles in conjunction with face shields.