Ohio Rev. Code Ann. § 2307.941
(A) The following apply to all tort actions for asbestos claims brought against a premises owner to recover damages or other relief for exposure to asbestos on the premises owner's property:
(3)
(B) As used in this section:
(1) "Threshold limit values" means that, for the years 1946 through 1971, the concentration of asbestos in a worker's breathing zone did not exceed the following maximum allowable exposure limits for the eight-hour time-weighted average airborne concentration:
(3) "Employee" means an individual who performs labor or provides construction services pursuant to a construction contract as defined in section 4123.79 of the Revised Code, or a remodeling or repair contract, whether written or oral, if at least ten of the following criteria apply: