In 1980 NASA began researching ways to supply clean air in enclosed environments. After years of study, researchers found that certain houseplants can measurably improve indoor air quality. It’s remarkable to consider that something as simple as a potted plant can help filter the air you breathe. Beyond aesthetics, many common houseplants have been shown to reduce airborne volatile organic compounds (VOCs), alleviate symptoms tied to seasonal allergies, and remove harmful substances such as formaldehyde, benzene, and ammonia. For most people, this benefit is worth the few minutes a week required for basic watering and care.
Many homeowners are surprised to learn that indoor air can be three to ten times more polluted than outdoor air, even in urban areas. Everyday items like carpets, cleaning products, and solvents such as nail polish remover can release vapors that accumulate inside. While choosing natural materials, eco-friendly cleaning products, and minimizing harsh chemicals are important steps, adding plants is an effective, low-effort complement that helps clean the air naturally.
Although nearly any plant will contribute to improved air quality, scientists identified several varieties that are particularly effective at removing common indoor pollutants. If you want to boost the freshness of your home’s air, consider adding one or more of the following houseplants:
- Bamboo Palm
- Rubber Plant
- Spider Plant
- English Ivy
- Janet Craig Dracaena
- Dwarf Date Palm
- Boston Fern
- Peace Lily
- Corn Plant
- Schefflera
Most of the plants on this list are quite hardy, so they’re suitable even if you don’t have a green thumb. You don’t need to fill every corner of your home with plants—two or three per room is usually enough to notice a difference. Place plants where you spend significant time, such as beside your bed, on your desk, or near seating areas, to maximize their benefits. If you have a curious pet that likes to dig in pots, a simple layer of decorative river rocks over the soil can discourage digging while keeping planters attractive.
Do you have any houseplants that brighten your day or are nearly impossible to kill? Share your favorites and tips for maintaining cleaner indoor air and healthier living spaces.
More Plant Guides
If you want further guidance on popular houseplants—both real and artificial—here are some useful topics to explore on plant care and styling:
- Snake Plant Care Guide
- Fiddle Leaf Fig Care Guide
- Tree Philodendron Care Guide
- How to Build an Easy Plant Shelf
- Protecting Outdoor Plants in a Deep Freeze
- Getting Started with Houseplants: An Expert Interview
- My Favorite Faux Plants
- Easy Houseplants to Keep Alive
Update: We’ve discussed which plants we’ve had success keeping alive in our own home, so feel free to explore those practical recommendations if you’re building your indoor plant collection.