"plants can absorb... toxins and pollutants as they perform their daily functions, enabling them to act as efficient air and water filters. ... The... home is prone to... insidious toxins, such as formaldehyde (from carpets, plywood, flatpack furniture and insulation materials); benzene (from particleboard and some paints); propanol (cleaning products); and dichloromethane (paint thinners and strippers), whose effects can range from mild eye, nose and throat irritations to more serious conditions. ... Orchids have the... advantage of being one of the few plants that produce oxygen at night"
URL : http://www.telegraph.co.uk/gardening/main.jhtml?xml=/gardening/2007/08/21/garden-eco-plant121.xml *************** Regards, VB _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
