Cartridges are the tools that you can operate through the battery. It is straightforward to carry cartridges. They can be used for essential oils. They are also known as oil vape pens. But they have a big demerit. Moreover, inhaling empty cartridges can be hazardous since they soak all the good chemicals having low combustion. Moreover, they leave such chemical particulars that are not good for health at all. All things considered, you definitely need a guide on How to know when the oil cartridge is empty. Everyone should know the facts about oil cartridges. These chemical particulars have high combustion. The oil cartridges have some basic parts. The mouthpiece is placed at the top of the cartridge. From the mouthpiece, you can put your lips to vapor. Chamber is the place where all the pre-filled oils are available for vaporization. The atomizer is the heating source that makes you inhale and vaporizes the oils. But at the same time, it is important to know about empty oil cartridges. How to know when the oil cartridge is empty? Many people are not aware of how to know when an oil cartridge is empty. So we tell you some details that will help you to find it out. We are suggesting you some ways that will help you to find out when the oil cartridge is empty: Test through your eyes First, you can see from your naked eye whether the oil cartridge is empty or not. It is the easiest method to know about empty oil cartridges. Analyze the oil cartridges through color If you have purchased an oil cartridge from the market that has a viewing window, it would be easier for you to find out the emptiness of the oil cartridges. Analyze the cotton wick that is available in the atomizer. If its color has turned orange, it means that there is no oil in the oil cartridge. Find out empty oil cartridges through smoke If you purchased an oil cartridge with a viewing window, you could analyze the empty oil cartridge through the smoke. When there is no oil in the atomizer, you will smell smoke in the oil cartridge. It is an indication of the empty oil cartridge. So when you are feeling that you are inhaling smoke instead of oil essentials, you should replace your oil cartridge and buy a new one. Hit Your Pen You can determine the emptiness of the oil cartridge through its pen. Just hit the pen and inhale the oil cartridge. It will burn the cotton inside the oil cartridge. If you taste burnt, it means that the oil cartridge is empty. Because the filled oil cartridges never taste burnt. Oil cartridges When You Find No Oil inside If you are using the oil cartridge for some time and find no oil left in the cartridge, it means that the oil cartridge is empty. Producing no vapor If you find that your oil cartridge is not producing much vapor then it is empty. Because the filled oil cartridge always produces much vapor. See the best before date on oil cartridges The best before date is always mentioned on the oil cartridges. If you are facing any difficulty to find out whether your oil cartridge is empty or not, you can see the expiry date. It will save your time rather than trying to see the remaining oil in the cartridge. If you find that the best before date is not passed yet, you can still use the oil cartridge. But if the oil inside the cartridge has been consumed, you cannot use oil cartridges even if their expiry date is not passed. Do not judge by color in some cases If you are putting your oil cartridges in sunlight, there is a possibility that the color of acrylic might be changed. When you are using the oil cartridges in the daytime, do not put them in sunlight. Because if you do so, the color of the acrylic will be changed. Moreover, you will think that the oil cartridge is empty but it is not empty in actuality. When It's taste is like metals When you try to inhale your oil cartridge but it tastes like metals, it means that the oil cartridge is empty. You should buy a new one. Because the taste of empty oil cartridges is quite funky. Moreover, inhaling an empty oil cartridge is not good for your health at all. Never use the empty oil cartridge. See similar article: How to Make Magenta \u2013 Quick Magenta Making Steps Oil Cartridge Tips\u00a0 Take an oil cartridge and hold the button when you are inhaling through its mouthpiece. When oil cartridge vapor will enter smoke in your lungs. Whether your oil cartridge is working fine, you can check it while exhaling. When you exhale, there will be some vapor. Always start with some small amount to test its proper taste. Multiple sorts of oil cartridges are now available in the market. Some oil cartridges have attractive designs and layouts. The oil cartridges have many features: the battery, heating coil, charger, mouthpiece, and chamber. Before knowing when the oil cartridge is empty, it is important to know the functioning of the oil cartridges as well. An oil cartridge is a small refilling tank. When you consume it, you can replace it with another easily. Moreover, an oil cartridge gives you the facility to dispose of. When you see some particulars of oil in the atomizer, you can use them with a new vapor. Summary If you are using the oil cartridge and it smells like metal, do not use it anymore. An empty oil cartridge can affect your health badly if you still inhale it. Therefore, we have given you some practical ways of finding out the empty oil cartridge. These techniques would help you to leave your old oil cartridge and enjoy a new one.