He said it shows schools need to install appropriate filters in mobile electronics for use on and off campus. (utahpubliceducation.org)
When it comes to one night stands, it is important to have appropriate filters in order to make the life easy for people who use it. (onenightstandsites.net)
With appropriate filters, Brilliant Violet 421 (BV421) and Brilliant Violet 480 (BV480) provide two options, with emission in the violet and blue channels respectively. (sciencemag.org)