What should you never use to blow dirt or dust off clothing?

Using oxygen to blow dirt or dust off clothing is inappropriate and unsafe. Oxygen is a highly supportive gas for combustion and is used in various industrial processes, including cutting and welding. Introducing oxygen to a potentially ignitable fabric can increase fire hazards significantly, especially if there are any residual flammable substances on the clothing. This poses a substantial risk of ignition and fire, making it critical to avoid using oxygen for purposes unrelated to its intended industrial applications.

In contrast, using alternatives like a vacuum cleaner or compressed air is safer for removing dirt and dust from clothing, as they do not present the same fire risk. Water can also be used effectively to clean clothing, although it may not be suitable for all fabric types or situations. Hence, it is important to understand the safety implications of using certain gases and to adhere to safe practices when cleaning materials.