Which of the following is a safe practice when using aerosols?

Wearing protective gear as advised is a safe practice when using aerosols because it helps to protect the user from harmful chemicals that may be present in the aerosol spray. Protective gear may include items such as gloves, goggles, and respirators, which serve to minimize exposure to potential skin irritants, harmful vapors, and other hazards associated with aerosol usage.

Using aerosols in a closed space, as mentioned in one of the other choices, can lead to the accumulation of fumes and reduce ventilation, increasing the risk of inhalation of harmful particles. Applying the product for purposes not listed on the label can result in unsafe or unintended consequences, as the label provides essential information on the proper use of the product. Lastly, applying aerosols to hot surfaces can create a risk of fire or explosion, as aerosols are often flammable and heat can intensify the risks. Therefore, wearing protective gear ensures safety and protection against the potential hazards of aerosol products.