Sentinel 335 Riot Control Agent Neutralizer is a professional strength neutralizer used to counteract and remove the residue left in areas where tear gas has been used. Sentinel 335 is safe for use on most common surfaces and neutralizes the actives found in tear gas residue, allowing for safe decontamination of the area. Sentinel 335 can also be used for content cleaning and is safe for use on most washable fabrics and soft goods. Sentinel 335 has an undiluted pH of 6.0- 7.0.