Now you can have smoke to linger in the air without the need for a smoke machine or a fire. It comes in a small can that will give 5 minutes of continuous spray before it runs out. In a still room, it’ll give about 2 hours of smoke. The best part is, when you’re dancing with the smoke lingering in the air, it won’t set off your smoke detectors. That would definitely kill the mood if it did. You can purchase the Smoke Spray in a Can for £5.99 or about $10 from Maplin. That is a little much for smoke in a can, but at least it will last a little while.