BHT yellowing typically occurs in residential carpet uses, especially under area rugs, low-lying furniture and in closets. BHT yellowing is best described as a "lemon yellow". (see under stains needing unique treatment)

Ozone attacks blue dyes first, the yellow and red components are usually left unaffected. But the loss of blue causes the carpet to turn a dull orange, although this depends on the original carpet color, On a purple carpet which had no yellow in the original color, the carpet would actually turn to a rose or red. In these cases, this is not a gain of color but rather than a loss of color.

most visible in the entry traffic lanes near the door Primarily found in areas where foot traffic enters directly from newly paved or sealed asphalt parking lots. These discolorations are very dull brownishyellowin color.

is used to melt snow and ice. If it is tracked onto carpet in the winter resulting in a dirty whitediscoloration.

some pesticide cause color loss. Usually attacking the blue component of the carpet color. Thus, a gray carpet would turn light pink or peach in color. On a green carpet, the result would be more of a light beige or light mustard color. The color loss is very slow.

Where there is a heavy traffic area the carpet fiber gets scratched or cut, which caused the fiber's luster to become dull, and darker

Carpet discoloration from feces and vomit will depend on the content of the digested food or the dyes contained in the food. Urine glows a yellow-green under UV light. Moreover, the odor is quite recognizable. On light colored carpets, urine can result in yellow spots, but this usually depends on the original color of the carpets.

All carpet fades about 4% to 8% per year. Fading is a type of color loss.

Sun Fading & Artificial Light is the most common cause of fading where exposed to direct sun light. Sunlight faded areas usually have less definition of shape than other types of color loss. Sun Fading is a type of color loss. Artificial Light exhibits the more severe fading will cause a carpet color to appear lighter than Sun Fading.

Many household chemicals contribute to fume fading. The fumes of Chlorine bleach in laundry areas, Chemicals used in kitchen and Bathroom, cleaners & deodorizers can cause carpet color fading. Containers of dry pool or spa chlorine if not tightly closed will cause fume fading to nearby carpeted areas. Certain air fresheners, insecticides, cleaning chemicals, perfumes, medications and cosmetics can create fumes especially if in spray form can cause fume fading.

acne medications, medicated cosmetics and shampoos that contain benzoyl peroxide or other peroxides will cause color loss or fading. Hair preparations contain certain medications or peroxides, foot medications often contain the same fading causatives.

Bleach should never be used to remove spots or for carpet cleaning, it will leave the carpet blotchy, uneven and faded colors. YOU CANNOT RINSE BLEACH OUT OF A CARPET! Once it's there, it stays there unless professionally removed with a Bleach neutralizer that is not available in the consumer marketplace.

Carpets cleaning and spotting products if used inappropriately may cause color loss.

From red pop, Kool-Aid, fruit punch, jello and popsicles are a big problem on carpets but can be removed if done by a Professional.