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How To Measure Your Screen
It is critical that you measure your monitor screen correctly to ensure proper fit of your computer filter.To determine filter size, measure diagonally from one corner to the opposite diagonal corner. Be sure to measure only the viewable screen area. Do not include the dimensions of the screen's frame or casing.

3M™ Notebook/LCD Privacy Filters |
Fellowes® Notebook/ LCD Privacy Filters |
Filter Viewing Area Height x Width |
Filter Viewing Area Diagonal |
Fits Monitor Size |
3M PF12.1 | 7.32" x 9.74" | 12.1" | 12.1" | |
3M PF14.1 | 8.44" x 11.25" | 14.1" | 14.1" | |
3M PF14.1W | Fellowes 4800601 | 7.484" x 11.963" | 14.1" | 14.1" Wide Screen |
3M PF15.0 | Fellowes 4800101 | 8.98" x 11.98" | 15.0" | 15.0" |
3M PF15.4W | Fellowes 4800701 | 8.18" x 13.09" | 15.4" | 15.4" Wide Screen |
3M PF17.0 | Fellowes 4800301 | 10.64" x 13.30" | 17.0" | 17.0" |
3M PF17.0W | Fellowes 4801001 | 9.06" x 14.47" | 17.0" | 17.0" Wide Screen |
3M PF18.1 | Fellowes 4800401 | 11.30" x 14.13" | 18.1" | 18.1" |
3M PF19.0 | Fellowes 4800501 | 11.89" x 14.83" | 19.0" | 19.0" |