What conditions will normally remain after cleaning a mattress?

After cleaning a mattress, it is common for certain stains and existing conditions to remain despite the cleaning process. This can be due to several factors. Stains may have penetrated deeply into the fabric or the underlying materials of the mattress, making them difficult to remove completely. Some types of stains, such as those from bodily fluids, may also be resistant to cleaning agents or methods used.

Additionally, certain conditions, such as wear and tear from regular use, may not be altered by a cleaning process. Cleaning often addresses surface dirt and odors but does not typically reverse physical damage or deeply embedded stains. Understanding this helps set realistic expectations for clients when performing fire and smoke restoration, emphasizing that while cleaning improves the appearance and hygiene of the mattress, it may not restore it to a "like new" condition.