If your laminate floor is already a few years old, or you don't notice a strong chemical smell it may not be necessary. Generally, it is recommended to get tested if you're having breathing problems although only when in your home, or if your home has a strong chemical smell.There are some do it yourself kits to check for toxicity levels but they are largely unreliable, and if you're that concerned, you really need a professional so that after you have your results you have someone to consult about steps to take (if any).