Does Pencil Cactus Purify Air? 6 Amazing Facts

Yes, pencil cactus purify air. It is effective in eradicating the bacteria and controlling the radiation as well. First of all, I am briefly touching on the background of the pencil cactus as follows.

Pencil cactus are hailing from Africa and from India. Euphorbia tirucalli is the scientific name of the pencil cactus. 

You need to be vigilant when handling the pencil cactus as they contain sap which is quite harmful. They contain stems which could retain water which would cause them to thrive in harsh conditions. There are few medicinal benefits of these plants as well.

Pencil Cactus purify air

Which part of Pencil cactus purify air?

Pencil cactus purify air while absorbing pollutants through the plant’s leaves and manufacturing pure oxygen. 

They could further eradicate bacteria too. In addition to that, they could also be beneficial to overcome radiation as well. Moreover they could absorb carbon dioxide and release oxygen too. 

NASA study about air purifying plants

These cacti are perfect indoor plants as they work as fantastic air purifiers. It would be beneficial for them if they could grow pencil cactus around their workspaces as by growing these plants, it could purify the air around them.

It could release the oxygen during nighttime. it could convert CO2 into Oxygen during night which makes them great indoor plants.

Moreover, it could assist you in combating allergies and sick building syndrome too. Pencil cactus could absorb pollutants and release oxygen. 

Further it could release moisture in the air, and it could reduce the allergens in the air too. Pencil cactus is a perfect example for this scenario. As such, someone who is allergic would love to have a plant like this as it will make them healthy and keep fit.

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Moreover, it is important that people at public places and at the workplace know about the worth of having these kinds of plants. 

As for example, sick building syndrome explains how a certain person’s health gains moderate to severe symptoms related to those workplaces whilst you cannot identify the sickness also.  

Many of these SBS symptoms are mainly about bad air quality. As such, it would be quite useful to grow a pencil cactus in these circumstances since it would be a ready treatment for SBS.

Pencil Cactus purify air

Best place to put pencil cactus indoors  

Living room

You could grow pencil cactus in both indoors and outdoors with little maintenance. It could help to purify the air and simultaneously it would help to keep you safe and healthy too. 

It could bring aesthetic beauty and health benefits too. They would add more beauty and calmness to the whole living room. 

However, it would be somewhat messy when you have to water them though. Moreover, you will have to keep an eye on the pets in case they get involved with these plants and make a mess.


These cacti could assist in filtering indoor air. What is exceptional about this plant is that it could transform carbon dioxide into oxygen at night. 

As such, it makes them an extraordinary plant to grow in bedrooms as it could contribute to proper air circulation.

They would help you to sleep well and better. It could be somewhat messy when you have to water them occasionally though.


Pencil cactus could be handy in using for kitchens as well. We could use these cacti as a decorative plant in the kitchen.

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You could grow this plant no matter what kind of a space in the kitchen you have allocated. it could be either counter space or even on the floor.

That will give a refreshing vibe to the whole atmosphere. It will add an attractive vibe in the kitchen when you grow them there. However, ensure they do not expose to high humidity levels and make sure they get ample light conditions there.


Pencil cactus would be ideal for filtering out pollutants in the air in the bathroom as well. Avoid over watering them though. Their easy maintenance and their attractive looks also make them perfect bathroom plants.

It will grace the entire bathroom once you place a pencil cactus in a bathroom. It would be challenging to safeguard them from high humidity levels there though.

Ensure that you take necessary precautions to control the humidity level there and do not forget to provide them with a grow light so that they will not run out of sunlight.

Special Note: Pencil cactus is toxic to human as well as your pet. Therefore choose a place where children or pets can not reach.

Read More: Is Pencil Cactus Toxic? | 10 Interesting Facts About Toxic Pencil Cactus |
snake plant air purify6 1

Is it good to keep pencil cactus in small space houses?

You could grow pencil cactus in small space houses without any hassle. It would be very beneficial to have since it could purify the air whilst removing the harmful bacteria and could assist for proper air circulation.  

Does pencil cactus release Carbon dioxide at night?

Pencil cactus do not release Carbon Dioxide at night. Instead, it could purify the air by absorbing all pollutant bacteria through their leaves whilst releasing  oxygen.

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On the other hand, rest of all the other plants would release carbon dioxide at night

Is it good to keep pencil cactus indoors at night?

It is good to keep pencil cactus indoors at night as they are quite strong when it comes to eradicating bacteria.

In addition to that, they could also be beneficial to overcome radiation as well. Not only that but also, it could absorb carbon dioxide and release oxygen.

Due to this, it would be ideal to have this plant as an indoor plant during the nighttime too.  

Pencil Cactus purify air
Read Next: 11 Interesting Pencil Cactus Watering Techniques
About author

I’m Dr. Chamika, As a hobby love talking about plants and showing you that taking care of indoor plants. My website is knowledge I’ve learned over the years and continue to learn about growing succulents. If you’re a succulent lover, then you have come to the correct place.