3M™ Adflo™ Nuisance Odor Pad Assembly 35-0699-99X01 Is An Optional Accessory Which Helps Reduce Nuisance Odors*. *Nuisance Odor Refers To Concentrations Of Organic Vapours Not Exceeding The Osha Permissible Exposure Limit (Pel) Or Applicable Occupational Exposure Limits, Whichever Is Lower.