We all know that houseplants are an easy and effective way to detoxify and purify the air in the home. But do you know which plants are best for specific rooms? For the bedroom, try a low-maintenance Christmas cactus; it looks pretty and removes carbon at night and releases oxygen during the day, so it purifies as you sleep. For the living or family room, go with palm trees; not only do decorators like their look, they are also purifying workhorses that remove ammonia from cleaning products and help add moisture to dry air. And for your home office, go with the pothos plant; it thrives on neglect (so toss some water from your glass into the pot once in a while), and its favorite thing to absorb is formaldehyde. This one turns your work desk into a healthy haven.