Ohio Rev. Code Ann. § 5741.02
(A)
(C) The tax does not apply to the storage, use, or consumption in this state of the following described tangible personal property or services, nor to the storage, use, or consumption or benefit in this state of tangible personal property or services purchased under the following described circumstances:
(9) Tangible personal property held for sale by a person but not for that person's own use and donated by that person, without charge or other compensation, to either of the following:
(E)
(1)
(b) A seller that obtains a fully completed exemption certificate from a consumer is relieved of liability for collecting and remitting tax on any sale covered by that certificate. If it is determined the exemption was improperly claimed, the consumer shall be liable for any tax due on that sale under this chapter. Relief under this division from liability does not apply to any of the following: