Dwell time, or Contact time, is the amount of time that a surface must remain wet to allow the chemical to be in contact with an organism in order to kill it. The dwell time of a product will vary by chemical manufacturer and can be found on the product label. Typical disinfectant dwell times range between 2-10 minutes. It is important to consider the dwell time as a factor when determining which disinfectant to use. Always make sure to read the chemical label prior to useand wear the recommended PPE.