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Cannabis vapes, a plain-language guide

Updated July 2026 · 6 min read · GreenBox Canada

Vapes heat cannabis extract into a vapour you inhale, no smoke, no lighter, effects within minutes. They are the fastest-acting mainstream format and the easiest to pace, which is exactly why many people prefer them. Here is how they work and how to choose.

Key takeaways
  • Onset within minutes, effects typically fade in 1 to 3 hours.
  • Two main formats: 510-thread cartridges for a reusable battery, and all-in-one disposables.
  • THC percentage describes the oil's concentration; one small puff is a small dose.
  • Start with one puff and wait 10 to 15 minutes before more.

Cartridges vs disposables

FormatHow it worksBest for
510 cartridgeA glass tank of extract that screws onto a rechargeable batteryRegular users, lower cost per gram
DisposableBattery and extract sealed in one unit, use and recycleTrying vapes, travel, zero maintenance

What the numbers on the box mean

Vape extracts are strong, often 70 to 90 percent THC, but concentration is not dose. Your dose is how much vapour you actually inhale, and one gentle puff of a strong cart is still a small amount. Treat percentage as a strength rating: higher percentage, smaller puffs. Live resin and full-spectrum extracts keep more of the plant's aroma compounds, which many people find gives a more rounded experience.

Vaping vs edibles

The two formats are opposites on timing. Vapes arrive in minutes and fade within hours, so they are easy to steer, take a puff, see how you feel, decide. Edibles take 30 minutes to 2 hours and can last 12, trading control for duration. Many people use both for different occasions. The full comparison is in the complete edibles guide, and dosing principles carry over from the dosing guide: start low, wait, then decide.

A sensible first session

Take one small puff, put the vape down, and wait 10 to 15 minutes. That is long enough to feel where it is going. Most new users find one to three small puffs plenty. Store vapes upright at room temperature, away from heat and out of reach of kids and pets, and never drive after using cannabis in any form.

Quick answers

Within minutes. Effects usually peak quickly and fade over 1 to 3 hours, which makes vapes the easiest format to pace.

It describes the extract's concentration, not your dose. One small puff of a high-percentage cart is still a small dose. Higher percentage simply means take smaller puffs.

They act faster but fade sooner. Edibles often feel stronger per milligram because of how the liver processes THC, and they last far longer.

Keep reading

Educational resource only. Everything on this site is general information for adults of legal age in Canada. It is not medical or legal advice, and effects vary from person to person. If you have health conditions or take medication, speak with a healthcare professional. 19+ (18+ Alberta, 21+ Quebec). Consume responsibly, store securely, and never drive impaired. Information is provided as-is and may be incomplete, out of date, or subject to change; verify anything important independently.