Clogged vents can lead to high amounts of this odorless gas in which incapacitate or maybe even kill. Please keep burning candles away from furniture, drapes, bedding, carpets, books, paper, flammable decorations, etc. Some people use beads to make jewelry and decorations. https://Www.Jhshe.com/home.php?mod=space&uid=1786127&do=profile&from=space