If your device is showing its age but still has some life left, these simple fixes might just save you the cost of an upgrade. Before you start shopping for a new device, try a few of these tips.

Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline includes fundamental research on the biochemistry, physiology, cell ...

The purifier-heater-fan options have names starting 'Purifier Hot+Cool' and codes beginning HP, and the most widely available option is the Purifier Hot+Cool Gen1 HP10.