ONE Air Leak Detection - Handheld Smoke Stick - Draft Detector Puffer Fog Pen Machine Kit, Black (SP_ONE_SLEEVE_KIT)

This smoke pen has been an incredibly useful tool for understanding air movement in my home, particularly for diagnosing radon mitigation effectiveness. It produces a steady, visible stream of smoke that makes it easy to track airflow patterns around vents, doors, and basement areas. The build quality is solid, and after months of use, it still performs just as well as when I first got it. It’s compact, easy to handle, and doesn’t create any mess or strong odors. Unlike DIY alternatives, this pen provides a controlled and consistent smoke output, making it much more reliable for precise testing. For the price, it’s an excellent value. Whether you're troubleshooting radon mitigation, HVAC efficiency, or general ventilation issues, this smoke pen is a must-have tool. Highly recommended for its durability, ease of use, and affordability!

Good Product

Waste of money

I have had two of these little black beauties. The first one I bought over five years ago. It only half way worked, with minimal - and I do mean minimal - smoke. I think I tossed it out sometime back. I needed another generator, so against my better judgement, I bought another one. It's the same problems. Little "whisps" of smoke, if any at all. It is not easy to fill and when doing so, it leaks the sticky oil all over. In my opinion, this unit is a cheap piece of junk from ... you know where.

Works great for value. Close in value to smoke pens but better. Cheaply made but as I just noted a smoke pen costs about the same and this works a lot better so comparatively it is great. Well worth the price versus other options. I use smoke testers regularly for work and am happy with it even considering it might not last very long which is why I gave it five stars.