Blueair's Signature Air Purifier is down to $300 at Amazon. The smart air purifier can be controlled via a voice assistant and uses a 7-stage filtration system.

Signatures validate a document by showing that you manually endorsed it with your written or digital signature. Microsoft Word 2013 won't automatically add your signature to all documents, because ...

Much has been made recently of the loopy signature of Jack Lew, the Treasury secretary nominee whose name — if he is confirmed — will appear on new U.S. currency. Lots of other people have screwy and ...