【Improved Privacy Filter】Protescreen 21.5 inch privacy screen filter after 200 times updates,Use revolutionary micro-louver technology. The 21.5 inch computer privacy filter limits viewing angle to +/- 30° and provide clear vision on the front. If see from the sides, the greater the angle the darker the screen.Anyone who tries to peek over the side will only see a dark screen! So with a computer privacy screen protector 21.5 inch, the privacy of your computer screen will never be leaked. | 【Package Content】You can get 2pcs 21.5 inch monitor privacy screen filter for a better price! Each package includes 21.5 inch privacy screen film x2, adhesive strips x2, slide mount tabs x2, alcohol x2, cleaning cloth x2. We are a factory that integrates production, processing and sales, We guarantee that all of our products are premium privacy screen protector. If anything happens, we will send you a new 21.5 inch monitor privacy screen at absolutely no cost. So you can buy with confidence! | 【Eyes Protection & Anti scratch】21.5 inch privacy screen for monitor use filtering optical materials imported from Japan can reduce 92% of blue light and 98% of UV light, and filter all harmful light emitted from the screen.The high-transparent and reinforced built-in protective layer not only presents high-definition picture quality, but also protects your screen from scratches.Hurry up and place an order, Own privacy screen for computer monitor 21.5 inch, Protect your screen and eyes. | 【Brilliant Anti-glare & Function Options】Our privacy screen protector for computer 21.5 inch monitor protects your eyes by blocking 95% of reflected light. Create a clear and transparent visual space and reduce eye damage by glare. And It is a reversible privacy screen filter. A matte surface effectively prevents blue light and glare, while a glossy is more privacy-resistant. You can choose flexibly according to your needs.In addition to this it also protects your screen from dust and scratches. | 【Easy to Install & Reusable】Our 21.5 inch privacy screen for monitor has 2 uniquely designed installation methods: ① Permanent installation- double sided adhesive tape. Suitable for all computers with a screen aspect ratio of 16:9 and a size of 21.5 inches. ② Removable installation- slide mount tab. Suitable for computer with raised frame, you can slide the filter in and out of the screen as needed, it provide a quick and easy way to remove your monitor privacy filter when you don't need. | 【Perfect for 21.5 Inch Monitors】Privacy screen for computer modeled with a real machine to ensure a perfect match in size. Adapted to 21.5 inch computer monitor screen with 16:9 aspect ratio, Width: 18 3/4" (477 mm), Height: 10 9/16" (268 mm), Diagonal: 21.5" (546.1 mm),compatible with Dell, HP, Samsung, Lenovo, LG, Acer, ASUS, Toshiba, ViewSonic and other monitor brands. You can use it anywhere you need to protect the privacy of your screen, offices, cafes, airports and trains. | 【Lifetime Free Support】Protescreen 21.5 inch monitor privacy screen filters are protected under Protescreen lifetime policy. lf you have any questions about the product (delivery, installation, wrong size, etc),please tell us, we will give you a satisfactory solution, and you will not have any loss. So please don't hesitate to place an order, giving your computer screen best privacy and protection while working in travel or open workspaces.