Molecules make up all matter, including chemicals, and these molecules leave the chemical material by outgassing. This term refers to the tendency to discharge molecules into the air. Hard materials outgas less than soft ones. Plastics are a very good example of this. The more they outgas, the worse for your body, since these molecules enter your body and can cause damage.
Ceramic tile is the least outgassing of all man-made materials.
Your Home Environment Don t allow tobacco smoke. Look under your sink replace all of these chemical janitorial supplies with natural materials. Check your bathroom, closets, drawers for strong offensive odors and remove their sources. Avoid perfumes, colognes and scented soaps and cosmetics. If you can t do without these, then at least make sure everyone in the house can handle the odor.