How do you check if the filter bag contains phosphors
without exposure to the sun's ultraviolet rays fluorescent material, can't see it (if there is a small amount of white light it was part of the lamp bead from visible light, not ultraviolet), ultraviolet radiation is harmful to human body, to avoid direct human body and long time use. If you don't understand, you can continue to ask.
In daily life, there are many opportunities for exposure to fluorescent agents. As long as no more than a certain standard (this method can only detect whether contain fluorescent agent, can't check out whether overweight), will bring many benefits to our lives. If too much contact with it can be harmful to the human body.
Fluorescent agent detection, here to provide a simple low cost method, can use small torch exposure to the sun's ultraviolet rays (also can be a uv counterfeit detector), if you have send violet fluorescence (generally for blue, and purple, and change the original color contrast, obviously a lot of bright and shiny, look in a few other items more contrast), is containing fluorescent agent. This flashlight in TB are sold, the search agent (fluorescence detection), not expensive generally 10 to more than 30 yuan, and practical, no matter what items contain fluorescent agent can shine up. Check it out later, especially for baby, or skin-care products. If there are three products, there is a risk of fluorescein