Pexels/Tim Witzdam Forget the myths. We tested the science and found the 7 best houseplants for purifying your home's air. Plus, exactly how many you need to see real results. May 15, 2026 AceShowbiz - You probably bought that snake plant because a friend swore it would "scrub the toxins" from your apartment. Maybe you even positioned three of them in your bedroom, hoping to wake up feeling like you'd slept in a forest. I did the same thing with a peace lily five years ago. And honestly? I felt a little silly when I realized I had no idea if any of it was actually working.