Following Transportation Security Administration rules is important not only to get to your plane on time but also to keep others safe. TSA recently got rid of the shoes-off rule, but it still maintains the 3.4-ounce rule for liquids.

There are three new items banned by TSA that you may need to know about.

Here's what they are and how to prevent your items from being taken away.

Do you use cordless hair devices for your hair routine? It might be best to keep them at home, because they may contain potentially hazardous materials, like gas cartridges and butane, which are banned by TSA.

The Federal Aviation Administration says that these kinds of cordless hair tools are banned, according to TheStreet: