; or (III) during any restricted-entry interval; or (x) performing any task or duty— (I) described in the definition of the term handler in section 170.3 of title 40, Code of Federal Regulations (or any successor regulations); and (II) not otherwise described in clauses (i) through (ix). (2) Exception The term pesticide handler described under paragraph (1) does not include any individual who is only handling pesticide containers that have been emptied or cleaned according to pesticide product labeling instructions or, in the absence of such instructions, have been subjected to triple-rinsing or its equivalent. (3) Ventilation criteria The ventilation criteria described in this paragraph are the following: (A) Fumigant In the case of a pesticide applied as a fumigant, an individual may not be in the entire greenhouse (and any adjacent structure that cannot be sealed off from the treated area)— (i) until the air concentration is measured to be equal to or less than the inhalation exposure level the labeling of the pesticide requires to be achieved; or (ii) in the case of a pesticide with no inhalation exposure level listed on the labeling, until after— (I) ten air exchanges are completed; (II) two hours of ventilation using fans or other mechanical ventilating systems; (III) four hours of ventilation using vents, windows or other passive ventilation; (IV) eleven hours with no ventilation followed by 1 hour of mechanical ventilation; (V) eleven hours with no ventilation followed by 2 hours of passive ventilation