Perfumes and colognes purchased through airport and airline duty free shops
Quantity limits: N/A - Because these are typically purchased at the airport or even on the aircraft, the quantity restrictions for toiletry articles do not apply here. However, quantities are generally regulated by customs/duty rules.
For perfumes and cologne not purchased through duty-free sales, see the entry for Medicinal and Toiletry Articles.
See the regulation: 49 CFR 175.10(a)(5)