····································································································虎皮兰在吸收二氧化碳的同时能释放出氧气,使室内空气中的负离子浓度增加。···································当室内有电视机或电脑启动的时候,对人体非常有益的负离子会迅速减少,而虎皮兰的肉质茎上的气孔白天关闭,晚上打开,释放负离子。·················································································································在15平方米的室内,摆放2-3盆金边虎皮兰,能吸收室内80%以上的有害气体。虎皮兰还可以吸收甲醛················································