Window Film Performance Data
| Film name | Visible light allowed through | Glare reduction |
|---|---|---|
| No film used | 90% | 14% |
| VisionGlow | 35% | 54% |
| ToneView | 23% | 64% |
| CrystalShine | 18% | 71% |
| GoldBlock | 6% | 81% |
A small coffee shop is installing window film to create a more comfortable indoor atmosphere. This is because in the morning, the sun comes through the front windows and makes it too bright for people reading or using laptops. The coffee shop owner wants to reduce the glare in the morning but still keep the shop looking sunny and welcoming. To help meet these goals, a window-film technician recommends selecting a film that reduces glare as much as possible while still allowing more than 15% of visible light to pass through the windows. The table shows the performance data for several different films.