“New carpet” odor sometimes is present after the installation usually comes from 4-phenylcyclohexene (4-PC), a by-product of the latex binder used to hold the fibers and backing together. It, like a “new car” odor, will normally dissipate within a few days and is not harmful according to the Carpet and Rug Institute. To speed up the removal of the odor, increase the temperature and ventilate.
If the odor is objectionable, fresh air ventilation is the best method to eliminate it. Open windows and doors and operate your fan system during the removal of the old carpet and installation of new carpet, as well as during any construction project.
Those who find the odor from new carpet offensive, or who might be unusually allergic or hypersensitive, should consider avoiding the area during and immediately following installation.
Of course, when shopping for new carpet, look for carpets that carry the Green Label and Green Label Plus labels from the Carpet and Rug Institute (CRI). These indicate a carpet produces very low emissions. For direct glue down installations, a low odor low VOC adhesive should be used.
The professional carpet cleaner can sometimes improve this condition by applying Brown Out® at 2 ounces/gallon to the carpet, raising the temperature as high as possible in the area, setting up a blower and ventilating. Also, try a portable air purifier with an activated carbon filter, which can trap gaseous air contaminants.
Also, sometimes, the use of an Ozone Odor Control Machine will help.