A high-tech 48-layer nano-coating resists scratches, stains, water and oil ... dust and the elements in general, the filters block UV light below 395nm, thereby reducing the aforementioned ...

Users say the tablets only create a mild chemical taste, but unlike purifiers or filters ... fairly standard-looking water bottle is super high tech. It contains a UV light source (the same ...

Well, water is basically a challenge to keepup ... Discuss why it is important that sunglasses filter out UV light. It’s important that all sunglasses carry a UV400 mark. This means that the ...

"The study emphasised the importance of long-term testing for UV filters, as the UV protection and light transmittance of the other bio-based filters changed significantly over time. For example ...