1. Function: Protective wavelength range 200nm-2000nm, optical density: OD5+, visible light transmittance: 0.1%, visible light transmittance: <20% 2. Flexible and Durable: High quality laser safety glasses are designed from durable polycarbonate material, flexible, durable and comfortable for daily long time wearing. All laser glasses are rigorously impact tested to ensure the highest level of performance even in treacherous conditions 3. Wide range of applications: our protective eyewear is the perfect tool to provide protection during laser hair removal laser teeth cleaning, tattooing and cosmetic treatments such as laser blemish removal and photorejuvenation. These IPL laser safety glasses provide vital protection for your eyes and help prevent IPL intense pulsed light, ultraviolet light, blue light, red light. Green light and infrared pulsed lasers can cause long-term eye damage. 4. Certification: CE approved. Ergonomic, comfortable, breathable and flexible. We have laser protective glasses with red, blue, green and orange lenses, the lens color is not the same, the protection band is not the same, friends can choose according to their own needs, if you have any questions, please contact our seller support team through Amazon for your answer. 5 Suggestions or questions about the product, please contact us through Amazon to resolve This is a protective eyewear designed to protect your eyes from laser damage, protection wavelength range 200nm-2000nm, optical density: OD5+, visible light transmittance: 0.1%, visible light transmittance: <20% Our protective eyewear is the perfect tool to provide protection during laser hair removal laser teeth cleaning, tattooing and cosmetic treatments such as laser spot removal and photorejuvenation. These IPL laser safety glasses provide vital protection for your eyes and help prevent IPL intense pulsed light, UV light, blue light, red light. Green light and infrared pulsed lasers can cause long-term damage to your eyes.