FAQ: Q: Why choose the Smith Holt? A: The Holt was built for the hardcore, demanding the ultimate in everything. The Holt is built for all-season toughness thanks to its bombshell construction. The proven fit and reliability of the Holt will get you from the park to the backcountry and back. Smith designs helmets and … Read more

FAQ: Q: How good is the dylos? A: The Dylos does one thing and it does it very well. It is a laser particle counter. Almost every inexpensive “air quality” unit uses a cheap non-laser sensor which is far less accurate. The Dylos uses much better technology. Q: What is the difference between dc1100 and … Read more