10 Incredible Indoor Plants That Release Oxygen at Night

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In today’s eco-conscious world, we are learning that our indoor air quality isn’t always the healthiest. But rather than resorting to air filters, why not take a more natural approach and add a few houseplants to help add more oxygen to your environment while also filtering out toxins?

As a bonus, the extra plants can improve your mental health as well.

Houseplants actually release oxygen during the day when there is natural light, through the process of photosynthesis. Although this process halts in the absence of light, having plants in your home can help to improve the air quality throughout the day.

So if you are thinking of adding a little greenery to your home to boost your air quality and oxygen levels, here are some of the best plants you can choose.

1 – Spider Plant (Chlorophytum comosum)

Let’s start off with one of the easiest plants to grow—even for someone with no green thumb experience. 

Indirect light, well-drained soil and a spot that doesn’t get too hot is all you need to keep a spider plant green and thriving.

Though the spider plant does produce small white flowers, it’s more of a foliage plant, with bright green and yellow striped leaves.

Its long slim leaves look lovely in a hanging basket, and it’ll grow long tendrils with “baby” plant buds at the end. You can leave them alone, or snip them off to propagate new plants.

Just press the root end of the plantlet into moist soil, and you’ll have a new spider plant in no time! If your spider plant grows too large, you can easily split them in two as well.

And when it comes to maintaining air quality, a spider plant will help add more oxygen and is also known to filter out carbon monoxide, formaldehyde, and benzene.

2 – Snake Plant (Sansevieria trifasciata)

The snake plant is another striped foliage plant that can be a striking houseplant with bold upright leaves. 

Fun fact: It’s sometimes known as mother-in-law’s tongue, and there are a number of different species on the market for houseplants. Some will only grow about a foot high, but some can reach up to 3 feet tall.

For example, the Black Coral Snake Plant from Planting Tree has a dark green/light green variegation and grows 2 – 3 feet tall. It’s easy to care for, and will grow nicely in a sunny window or a spot that only has indirect light. 

Regular watering isn’t necessary either as it’ll do fine in dry soil. In fact, over-watering is one of the big problems with snake plants.

The plant will also produce new sprouts from the underground rhizome, so it can outgrow a pot if you’re not watching. To avoid this, either cut away the developing sections, or repot in a bigger container until it’s as large as you want to manage.

That said, snake plants are an excellent choice for any room in the house and will help remove formaldehyde from your air.

3 – Peace Lily (Spathiphyllum sp.)

What about an air-cleaning plant that has some flower to it? 

Peace lilies have large, elegant white blooms as well as abundant dark green leaves. They’re also easy to care for. As soon as it gives a little droop, you know it’s time to give it a drink (usually just once a week).

They do best in indirect light, making them excellent for those rooms without a lot of sun. Your lily may only bloom once a year, too – usually in the spring. But, if you give it a little extra fertilizer, you might get a second flowering in the fall too.

And lucky for you, Costa Farms sells Peace Lilies on Amazon. They come with several options of pots and gift wrapping, which I found pretty neat!

Here’s an interesting fact:

Lilies are known to be toxic to pets—however the peace lily isn’t actually a true lily. So, while it won’t taste good if chewed on, and it might make a dog or cat froth at the mouth a bit, there is no drastic health risk there.

Still, if you’re concerned about the health of your pets around certain types of plants, check out our article about plants that are toxic to your pets.

That aside, know that a peace lily will help filter out a wide mix of volatile organics from the air, like benzene, toluene, formaldehyde and xylene.

4 – Pothos (Epipremnum sp.)

If you have a certifiable black thumb, as most do, you should go with a pothos vine. 

They’re extremely hardy houseplants that anyone can keep alive, and will produce large yellow and green leaves on trailing vines.

Choose a spot that’s sunny, but without too much direct light, or you can put up a pothos in a low-light area if that’s what works best.

Even more fascinating: the variegated leaves will adjust in color to become greener if it’s in a shadier spot! 

Water occasionally, but don’t worry if the soil dries out. The golden rule? Better a little too dry than too wet with a pothos plant.

Again, this is a good choice for cleaning up formaldehyde in the air, as well as adding clean oxygen to your environment. 

Got pets? Make sure you have your pothos in a hanging basket and well out of reach. It’s toxic if ingested or chewed.

5 – Weeping Fig (Ficus benjamina)

Heads up; this one is more of a tree than the usual potted plant, and may not be the best choice for the novice indoor gardener. So, if you want something larger than your average houseplant, a weeping fig might fit the bill.

Also known as a ficus, these indoor trees are great air cleaners and they’ll help lower levels of trichloroethylene, benzene, and formaldehyde in your home. 

But you’ll have to give it a little more attention to keep it healthy and thriving, though once it’s established, a weeping fig isn’t any more work than other plants. 

Additionally, they need consistent bright light that’s not too direct, and they won’t do well in cool areas or parts of the house prone to drafts.

High humidity also helps keep a ficus happy. You can achieve that with misting or placing the plant on or near a shallow tray with stones in it. Of course, that doesn’t mean you should keep the soil wet because that won’t help at all.

Once you have the right location and care regimen in place, you can expect your air-scrubbing fig tree to stay healthy for many years.

Weeping figs aren’t always the easiest plant to find though, but there are sellers like Brighter Blooms that have them available on Amazon.

6 – Philodendrons (Philodendron sp.)

Like the pothos vine, philodendrons are toxic and shouldn’t be kept if there’s a chance that kids or pets will get at the plant. 

That said, you can find various species of philodendron for houseplants, with the most common being the heartleaf variety.

It’s a vine, much like the pothos, but you can also get more upright types like the lacy leaf philodendron, for instance. They’re super easy to grow, and will help reduce formaldehyde and other VOCs in the air.

And whether you have a spot with great light or weak light, a philodendron will be fine as long as it doesn’t overheat. Give it a drink only when the soil is dry to the touch.

7 – Aloe Vera (Aloe vera)

One of my favorite air-cleaning plants is the aloe vera. It’ll target benzene and formaldehyde, and will grow well in any sunny window.

Aloe vera is a succulent, putting it in the same general family as cacti. This means that they grow quite slowly and have thick fleshy spear-like leaves. 

Dry conditions are the best. As such, let the soil dry out completely between waterings. They like a lot of sun too – so find a window that faces south if you can.

Another added benefit of having aloe vera around is that you can snip off a spear, and the clear gel inside is a wonderful (and natural) treatment for burns or minor cuts. I believe every home should have one!

I recommend getting the Hedgehog Aloe from Nature Hills for its striking appearance. I can see it looking great in any room.

8 – Chrysanthemum (Chrysantheium morifolium)

I haven’t mentioned a lot of flowering plants yet, so here’s one choice that brings a pop of blooming color as well as benzene-cleaning benefits. Neat, right?

Chrysanthemums come in a range of bright colors too, and will need some regular fertilizing to keep the flowers coming indoors. 

Make sure to give them a bright sunny spot, and keep them watered enough so the soil never dries right out.

They don’t do well in cool temperatures either, nor do they like too much heat! Meaning, you might need to move your plants around a little to make sure you have that sweet spot for them.

Even if your mum (short for chrysanthemum) doesn’t flower all the time, the leaves are where the air-purifying takes place anyway. 

As long as your plant has thriving foliage, it’s doing its job.

9. Orchids (Orchidaceae)

Who doesn’t love orchids? They’re delicate plants with a humbling beauty to them. They also come in various colors, including white, purple, orange, red, and pink. 

And if you’re indecisive like me – plant them all! No harm can come from having more orchids in your home or garden. They’re not even toxic – whether to you or to your beloved pets.

What else makes orchids perfect? They’re super easy to take care of. 

You only need to water it once a week, keep it in a partially shaded area, and feed it strong fertilizer during the growing seasons (summertime and early fall).

They’re not just a pretty sight to keep around, but orchids can also clear out the following toxins: xylene, toluene, and formaldehyde.

10. Areca Palm (Dypsis lutescens)

I can tell you right now that your cats are going to love this plant! And luckily, the areca palm isn’t toxic to them either so they can play with its wispy leaves all they want.

Aside from the areca palm’s entrancing leaves, the plant hardly ever blooms. But watching it sway softly when a breeze tickles by is beautiful enough – even if it has no colorful flowers.

This plant is another low-maintenance variety (all of my top 10 are if you’ve noticed). You may need to water it often to keep the soil constantly moist—not waterlogged, though—but other than that, you don’t need more than partial shade with ample light.

Don’t neglect the areca palm and it’ll easily clear your air of toluene and xylene. Fun fact: Nasa ranked this plant the number one air-purifying plant! It’s a hands-on must-have.

Why Do I Need Indoor Air-Purifying Plants?

Before we wrap up, you might be wondering where all these exotic chemicals are coming from and whether they’re likely to be in your home environment. 

Believe it or not, all of the toxins mentioned here are probably present in your home – possibly in high concentrations!

Formaldehyde, for instance, is extremely common in the home. It’s a known carcinogen and is used in a number of adhesives, wood treatments (particle board and plywood especially), upholstery and can also be found in cigarette smoke.

This means that it’s released into the air from furniture, bedding, carpeting, paints, cleaning products, pesticides, clothing and more. In other words, it’s almost certainly in your air.

Other chemicals like benzene, toluene, and xylene are all varieties of volatile organic compounds (VOCs). Those come from sources like paints, adhesives, cleaning products, solvents, treated wood, smoking, dry cleaning and pesticides. 

Again, all things you find in the typical home.

So, unless you’re taking careful care with every item that comes into your home, it’s safe to say that you have some level of air quality problem.

And lucky for us, well-chosen houseplants can make all the difference. They’ll clean out the impurities and add fresh healthy oxygen at the same time. No need for extreme measures, my friend!

Final Thoughts

What are we still waiting for? You should be picking one of my top 10 indoor plants that release oxygen at night right about now!

I made sure to pick you ones that are relatively easy to care for and that should look pretty in any space in your house—or even outside. 

Choose one, and introduce yourself and your family to finer air quality and a more pleasant environment to call home.

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