Trying to find those pesky air leaks in your home or building? The Regin S220 Smoke Pen is the tool you need! This handy little device produces a thin, dense white smoke trail that lets you visually see drafts and air movement. It's perfect for locating leaks around windows, doors, electrical outlets, ductwork, chimneys, attic hatches, and foundation cracks. Great for home inspectors, energy auditors, HVAC techs, or DIYers doing blower door tests or trying to improve home efficiency. Each pen comes with 6 wicks – just light the tip with a match or lighter, and it smokes for about 30 minutes per wick. You can cap it to stop the smoke and relight it later. No batteries or messy fluids required! The smoke is non-toxic, low odor, and safe to use indoors (but avoid near combustible gases). The pen itself is reusable, and replacement wicks (model S221) are available separately. This 2-pack gives you double the testing time – perfect for pros or sharing with a colleague. Use it to check exhaust fan performance, fireplace draft, room pressure, or even to test smoke detectors. It's sensitive enough to detect the tiniest air currents. A must-have tool for anyone serious about air sealing, weatherization, or building diagnostics. Say goodbye to guessing where drafts are coming from!
