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Choosing vaping products that are nicotine-free is generally going to be better for you than using nicotine-containing vapes. Nicotine itself is a harmful chemical, and its use can lead to a narrowing of your arteries, increases in blood pressure, and elevated heart rate. These effects can increase your chances of having a heart attack or stroke.

However, nicotine isn't the only harmful substance that can be in a vape product. You should also make sure the vape you're using doesn't contain any known harmful ingredients like diacetyl, formaldehyde, or vitamin E acetate.

When you smoke cigarettes or use vapes with nicotine, your body can become physically addicted to that active chemical. But you can also develop a "soft addiction" to the simple act of vaping.

Fiddling with something in your hands, raising it to your mouth, inhaling, and exhaling can all become ingrained behaviors that can be hard to break.

With non-nicotine vapes, of course, you won't develop a physical addiction to nicotine. But you may become accustomed to the repetitive actions described above.

There's no single "safest vape" on the market. But some vapes can be considered safer.

Of course, you want to avoid nicotine. That's why you're looking for a nicotine-free vape in the first place.

But you also want to avoid dangerous chemicals we've mentioned a couple of times already — diacetyl, formaldehyde, and vitamin E acetate — that have been shown to cause health problems.

Outside of that, a vape may contain ingredients that are generally considered safe but which may be harmful to you personally.

Caffeine, for example, is generally considered safe if used in moderation. However, if you're sensitive to caffeine and you use a vape containing it, it may not be safe for you.

Always read the list of ingredients for any vape you try so you're sure of what you're getting. You can also look at our blog posts on Where to Buy Nicotine-Free Vapes and 12 Best Nicotine-Free Vapes for more information on the safest vapes.

The answer to this question is going to depend on where you live.

In the U.S.A., the legal age to buy what the government calls "tobacco products" is 21. And yes, even non-nicotine vapes are considered "tobacco products" for the age requirement.

However, two states have set the legal age to 19 (Alaska and Arizona), and a handful of others have set the age at 18 (Kansas, Missouri, Montana, North Carolina, South Carolina, West Virginia and Wisconsin).

Elsewhere in the world – in the U.K., for example – the legal age to buy vapes or vaping accessories is 18. The minimum age is also 18 in Canada, though some provinces have raised that age to 19 or 21.

To be safe, you’ll have to become familiar with your local laws governing tobacco products and determine what constitutes a “tobacco product” where you live.