With the increased levels of security that exist in today’s world, it is not surprising that one of the most common questions passengers have is whether they can fly with aerosols in their checked baggage and whether there is any danger that they will explode.
TSA and FAA regulations restrict the carriage of certain types of aerosol cans on a plane if they contain flammable liquids, oxygen, and some other gases, as they could explode in the unlikely event of a fire.
Contents
Will aerosol cans explode in checked luggage?
It is perfectly safe if you have packed your aerosols containing sunscreen, deodorant and other toiletries in your checked bag that will travel in the aircraft’s hold. Please do not worry, as your aerosols will not explode!
TSA rules prohibit certain types of potentially hazardous or flammable aerosols from being carried on a plane, packed in either carry on or checked luggage.
Putting any aerosols you are packing in your hold luggage in a plastic bag would probably be prudent. This is not because they may explode but just in case any aerosols are accidentally activated to prevent contamination of any of your clothes or other items.
You are permitted to take quite a few aerosols in checked luggage, but there is a limit on the size and total amount.
The TSA website states that toiletry aerosols in hold luggage must not exceed 70oz (68 fluid ounces) in total and each container must be 18oz (16 fluid ounces) or less.
You may find our post “Can you take aerosols on a plane” useful for further information.
Will spray sunscreen explode on a plane?
Spray sunscreen in aerosol cans or manual spray bottles will not explode on a plane either in checked bags or carry on. Neither will fake tan explode.
Below is the answer from the TSA to a passenger asking will spray sunscreen explode on a plane:
Will other liquids explode in checked luggage?
There is no reason to worry whether your liquids will explode on a plane in either your carry on bag or your checked baggage, and in particular, if you are worried about will hairspray explode on a plane.
None of the following will explode under normal circumstances (ie. as long as they don’t get damaged):
- Spray sunscreen
- aerosol sunscreen
- pepper spray
- dry shampoo
- shaving cream
- hairspray
- inhaler
- shampoo
- bear spray
- spray deodorant
- mousse
- soda cans
- shaving gel
- fake tan
- champagne
- lotion
- canned food
Can you fly with aerosols in checked baggage?
While aerosol cans do have the potential to explode, fortunately, the circumstances under which they might are not found under normal conditions in the baggage hold of a plane. The likelihood of an aerosol on a plane exploding is minute.
Aerosols containing a liquid are held in the can under pressure with an expellant. When the button on the aerosol can is pressed, it opens a valve and some of the liquid contained in it is expelled.
Will aerosols explode on a plane? Here’s why not
There are a few reasons why an aerosol may explode, which include fire/extreme heat or being damaged, but under normal circumstances, these conditions will never exist in an aircraft’s hold.
Decompression
Pressurization in an aircraft seems to be people’s main worry when it comes to wondering if aerosols will explode in their checked luggage.
However, the baggage hold of an aircraft is pressurized just the same as the passenger cabin, so the air pressure will never be very low.
In theory, if the pressure outside the can were to reduce, this may cause the can to explode due to the higher differential in pressures between the inside and outside. In practice, this is not something that will happen. Even if the pressurization system on the aircraft failed, the difference would not be enough for aerosol cans to explode.
Actually, aerosol cans would not even explode if taken on a space flight and exposed to zero pressure in space.
Fire/Heat
Aerosol cans may explode if exposed to fire as the heat build-up will be extreme. As the heat increases, the pressure will increase in the cans due to the expansion of the liquids and expellant. This may get to the point where the structure of the container will no longer be able to cope and the can will rupture, causing an explosion.
The heat from the sun could also cause this in some instances if the heat builds up, particularly if in an enclosed place.
Damage
Aerosol cans could potentially burst if containers are punctured by some kind of impact, causing damage. If the aerosol product is packed in a suitcase, surrounded by clothes etc, then this is very unlikely to happen.
Aircraft Pressurization
A modern aircraft is a sealed tube with semi-spherical bulkheads at the nose and rear. Everything within that area of the aircraft is pressurized.
You may notice this if you take a sealed bag of potato chips with you, for example. Once at your cruising altitude, the bag expands, but even that is not enough for it to pop. The bag is only made of paper/plastic, so a metal can is definitely safe.
The whole aircraft is pressurized to the equivalent of being at 6000-8000 feet. This is usually a lower pressure than at the airport you take off from (unless you take off from a mountain airport). But it is not sufficiently low for an aerosol can to explode.
Rarely are there cases where the pressurization system on a plane has failed – known as explosive decompression. As far as I am aware, even when this has taken place, there is no record of aerosol cans exploding on board, either in the cabin or in checked luggage.
However, should the pressurization system fail, the lower air pressure, even at 40,000 feet will still not be sufficient to make the aerosol containers fail. In fact, even in the vacuum of space, they would unlikely burst.
Enjoy your flight and don’t worry – your aerosols will be fine!
Research
The FAA has conducted extensive research on whether aerosol cans will explode in checked bags. This is a link to a report made for the FAA Technical Center looking into the Hazards of Aerosol Cans in Aircraft Cargo Compartments.
Related posts
How much liquid can you take on a plane in checked baggage?
What is not allowed in checked luggage?
Can you bring pepper spray on a plane?
Summary
When it comes to packing for air travel, many people wonder about the potential dangers of bringing certain items on board, such as aerosol cans commonly used for deodorants and hair mousse. The question that frequently arises is whether these products have the potential to explode on a plane, causing safety concerns.
Fortunately, the Transportation Security Administration (TSA) has addressed this concern and provided clear guidelines regarding aerosol cans in carry-on luggage. According to the TSA, aerosol cans are generally allowed in both checked and carry-on bags. However, there are restrictions on the size of the canister and the total volume of aerosol products that can be carried on board.
Regarding the fear of explosions, it is highly unlikely that deodorant or hair mousse will explode on an airplane. The pressure and temperature inside an aircraft cabin are carefully regulated, ensuring a safe environment for all passengers. Additionally, aerosol cans, such as pressure relief valves, are designed with safety measures to prevent explosions.
Nevertheless, it is important to read and follow the specific guidelines the airline and TSA provide. For instance, aerosol cans may need to be individually packed in a clear plastic bag, and some airlines may have additional restrictions. By adhering to these guidelines, passengers can ensure a smooth and safe journey without any concerns about their deodorants or hair mousse exploding mid-flight.
FAQs
Will an inhaler explode on a plane?
No, your inhaler will not explode on a plane. You can pack it in your checked luggage, but it is probably better to have it in your hand luggage in case you need it on the flight.
Will spray sunscreen explode on a plane?
Your spray sunscreen will not burst on a plane, whether it is in pump or aerosol form. You can take it in your carry on if it is smaller than 3.4 oz. otherwise, you need to place it in your checked baggage.
Will dry shampoo explode on a plane?
No, dry shampoo will not explode on a plane in an aerosol can. You can take dry shampoo in your hand luggage but only if it is no larger than 3.4 ounces otherwise you need to put it in your checked luggage.
Will bear spray explode on a plane?
No, bear spray will not explode on a plane for a very good reason. It is not permitted to be carried on a plane in either carry on bags or checked bags.
Will pepper spray explode on an airplane?
No, pepper spray will not explode on an airplane in an aerosol can. You are not permitted to take pepper spray or any personal defense spray in your cabin bag, or through airport security, so you will need to pack it in your checked luggage.
Will hairspray explode on planes?
No, hair spray will not explode in hand luggage or checked bags on an aircraft. You can take hair spray in your hand luggage but only if it is no larger than 3.4 ounces otherwise you need to pack it in your checked luggage.
Will shaving cream explode on a plane?
Shaving cream will not explode on a plane in carry on bags or checked bags. You can take shaving gels and cream in your carry on but only if it is no larger than 3.4 ounces otherwise you need to pack it in your checked luggage.
Will a soda can explode in checked baggage?
Soda cans are unlikely to burst or leak in checked baggage unless they are damaged in some way. If you need to pack them, to be safe, put them in a sealed plastic bag or container so if they do burst, then the contents will not spill over the other contents of your checked bags.
Will champagne explode on a plane?
Champagne will not explode on a plane in either your cabin bag if you have bought it at the duty free store or if it is in your checked bags.
Will bottled water explode in checked luggage?
Bottled water in any form of bottle will not explode when packed in your checked luggage.
Will fake tan explode on plane?
Fake tan, whether in an aerosol can or any other container, will not explode on a plane in carry on or in checked bags.
I have been traveling around the world by air since the early 70s and living overseas too. I worked for British Airways for a number of years and I am also a private pilot. About Me
