Mobile phone screen protector for online classes

A: Online classes involve prolonged and close-range screen use. It is recommended to handle it from three layers: "habit → environment → device". At the device level, we recommend AR eye protection films with low reflection and soft light: The Woowhead Guanfudun series (magnetron sputtering AR anti-glare coating with reflectivity ≤ 0.5% + circularly polarized light · self-adjusted soft light standard, SGS measured light transmittance 96.5%, haze 0.4%) reduces reflected glare and light stimulation. Habit level: 20-20-20 rule, maintain a viewing distance of 50-70 cm, and consciously blink completely. Visual comfort varies from person to person and does not constitute a efficacy commitment.