ONE Air Leak Detection Hazer Hard Field Kit ? New Handheld Smoke Stick Draft Detector Machine with Fog Juice for Detecting Leaks, Puffer Tool for HVAC Technicians Energy Raters

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!

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 fairly well. Difficult to secure plug in fill port, so leaks at times. Pump trigger is inconsistent, large puff at times and less at times. Strength of batteries may have some affect on amount of smoke. I may need to learn to work it. Product met my needs.

The price is a bit high, but the device produces smoke very quickly and works exactly as intended. It helps detect air leaks efficiently and gets the job done. Overall, it meets the expectations and performs well.

When it works it works well. The design needs refinement as fluid can easily leak into other parts of the unit, rendering it useless. The method of siphoning fluid from the unit after use is cumbersome and not always effective either

Piece of junk, barely smokes and takes forever to get a good thick plume. Also just randomly leaks for no reason with temperature fluctuations.

Bought this to check the ventilation in my attic after a new roof was installed. Worked flawlessly and saved me a ton of time and effort. Glad I found this fine little gem! Also used it to check the return vents in my HVAC and worked great for that too!

Item did not produce hardly any smoke, was almost impossible to refill due to such small hole, and leaked all over the place. I was not able to use this for the intended task I purchased it for due to it not really doing anything.

Good Product

Waste of money

This unit work ok, but the reservoir leaks a little. Be sure to store it upright!!

I use it for work. Product worked perfectly and did the job I needed.

Used this for a job to visualize airflow. It works great it produces a large amount of thick mist to visualize air flow well with or without a flashlight aiming on the smoke. Threw it in a back pack and it turned on (even after using the lock on the trigger) and it overheated and melted out the filament. It’s just a poorly designed mechanism for triggering the heating element. There needs to be a way to store this like a tool. It can’t be so delicate. It’s essentially a large vape pen.