Why is a VR Headset Needed for ALT-152?
ALT-152 is known as the VR Smoke School method but the requirement of a VR headset is not for the reason you may think. We'll explain why it's needed.
Why is a VR Headset Needed for ALT-152?
Many people assume that EPA ALT-152 requires a virtual reality (VR) headset to create a 3D world where users can move around and interact with virtual smoke plumes. That’s not the case. ALT-152 requires a VR headset to block ambient light and ensure consistent display quality of videos.
VR Smoke School Videos are Not 3D
The videos shown in the headset are not 3D — they are 2D (flat) videos captured to provide a clear view of the plume against its background. The observer watches these videos just as they would on a TV or computer monitor. With a VR headset, the screen can be made larger and can be wrapped slightly to provide a more immersive experience. But ultimately, you are simply watching smoke plume videos in a controlled environment. On a side note, the VR Smoke School Program does not require you to move around - everything is completed while sitting.
Easy to Use - With or Without a Headset
The VR Smoke School Program is unique in that you can access the entire program from a desktop, laptop or VR headset. You can’t earn your certification from a desktop or laptop but you can practice and see how everything works (for free!). The program is identical whether it is accessed from a laptop, desktop or VR headset. When you are ready to get certified, put on a VR headset and take the test. After you have passed on an approved VR headset, you can purchase your certification. Approved headsets are widely available for under $300 and can be shared among multiple users.
The VR Smoke School Program is designed to be simple and intuitive—even for first-time VR users. It’s also proven to be more effective: according to an EPA-published study, observers certified through the VR program were 55% more accurate when evaluating white smoke and 25% more accurate with black smoke compared to those certified at in-person smoke schools.
Ready to get started? Create your free account for full access to the VR Smoke School Program and earn your EPA Method 9 certification today.