enviromental helpers

12
Across
  1. 2. Korean designer invented a printer that uses coffee grounds instead of ink. This curious creation could avoid a lot of contamination to the earth and a saving in toxic pigments.
Down
  1. 1. is made with biodegradable filters inside which there are wildflower seeds. Thus, this ------ degrades in a few weeks and the flower that will germinate inside it will be in charge of purifying the air.