Yes, you can take aerosols on a plane, but there are important restrictions to follow. For carry-on luggage, aerosols must comply with the 3-1-1 rule, which means each aerosol container must not exceed 3.4 ounces (100 milliliters) and must be placed in a clear, resealable plastic bag. For checked baggage, aerosol containers can be larger but the total quantity of all aerosols must not exceed 70 ounces (2 kilograms), and individual containers usually must not exceed 18 ounces (500 milliliters). Some aerosols, especially flammable ones like spray paint, cooking spray, WD-40, and aerosol laundry products, are strictly prohibited on planes. It's also advisable to check with your specific airline for any additional rules before traveling.