Questions with the keyword 'harmful'

• Are the lazers the same as the ones in lazer tag? and how are the ones in lazer tag not harmful? by glencoco to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• Are laser spot removers harmful? The rumour is that they give you cancer. by bradf002 to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )