tobacco mosaic virus microscope by Dennis Kunkel Microscopy / Science Photo Library Using Viruses to Help Water

In 2004, two design graduate students came up with the idea for an electronic alternative to smoking

Pleats give this N95 mask more surface area than typical disposables, making it far easier to breathe through and comfortable during more vigorous activity

doi:10.1136/tc-2022-057734

Statements Data availability statement The data analyzed in this study is subject to the following licenses/restrictions: The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request

Most of the media attention has been focused on the health and safety of e-cigarettes and less on the management at end of life