How 3 Seconds of Engraving Can Wreck Your Lungs

Three seconds of rotary engraving on plastic feels negligible — but the invisible particles it generates stay airborne for hours and can trigger severe asthma symptoms the next morning. This episode unpacks the particle physics of what a Dremel actually throws into the air, why P100 filters matter more than N95 for reactive airways, and how to redesign your DIY workflow so the question of "should I mask up for three seconds" disappears entirely. If you've ever wondered why a quick, dust-free task left you coughing the next day, this episode traces exactly what's happening in your lungs — and what to do about it.