Sorry the table didn't show in the above post ( formatting issues which I can't figure out ) however the table is available at the link above and details set out below just in case the link changes....
Clear lens: technology approved for permanent wear and certified with perfect optical quality with anti-fog and antiscratch coatings. 99.9% UVA/UVB protection.
Available in acetate (filters 99.9% UVA/UVB, 10% IR), transmits 92% of all visible light. Yellow comfort lens: technology approved for permanent wear and certified with perfect optical quality, it is designed and used in case of low light situations improving contrast.
With anti-fog and anti-scratch coatings. 99.9% UVA/UVB protection. Smoke lens: technology approved for permanent wear and certified with perfect optical quality, it is designed and used for excellent protection against UVA/UVB and solar radiation. 99.9% UVA/UVB protection. Blue flash lens: filters 99.9% UVA/UVB, 90% visible light and 47% IR. Red flash lens: filters 99.9% UVA/UVB, 87% visible light and 60% IR.
Welding shade 1.7: filters 99.9% UVA/UVB, 54% visible light and 95% IR. Welding shade 3: filters 99.9% UVA/UVB, 54% visible light and 97% IR. Welding shade 5: filters 99.9% UVA/UVB, 95% visible light and 99.9% IR.
Available in toughened glass (filters 99.9% UVA/UVB, 98% visible light and 99.9% IR).
IR: filters 99.9% UVA/UVB, 53% visible light and 99% IR
as you can see some have no or limited Ir protection and sorry about the length of the 2 posts....