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F20 - 63% Grey - Economic



F20 - 63% Grey - Economic

Filter Number: 20
Lens Colour: Grey
Visible Light Transmission: 63%
Protection: Ultraviolet


Recommendations:

Cataract


Each filter colour has a Visible Light Transmission (VLT) figure, which indicates the percentage of light passing through the filter. A low value will block more light from entering the eye; a high value allows more light into the eye. You should avoid a VLT% that is too dark for your needs for safety reasons.


The grey filter has the potential to relieve indoor glare, particularly under fluorescent lighting.


The economic plastic frame comes in two sizes, medium and large. Medium is suitable for the average adult.



Please note: Frame images are shown in greyscale, please refer to the colour swatch above as a guide to the tint of these filters.



Description   Code   Price
 excl. VAT
Quantity    
F20 - 63% Grey - Economic - Medium Fit Over F20#U £11.99
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F20 - 63% Grey - Economic - Large Fit Over F20#L £11.99
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