Professor Heppell has written an article about which plants are best to use in a classroom to help reduce CO2 levels.
Here is an extract and you can read the full article here
“Countless studies confirm that the right plants can have an active role in reducing CO2 and increasing oxygen particulalry in any closed space (although plants also respire and are counter effective as oxygen producers at night in the dark). We have been encouraging schools to harness the power of plants through Bring Your Own Plant projects, which really do make things better during the school day. Better oxygen brings behaviour, engagement, wellbeing and other gains. BYOP is currently a wildy viral thing to do, so please join in – better learning, health gains and some science too – what’s not to like! This page is a quick guide to what to do:
Firstly – which plants?: helpfully NASA has published their own research (Wikipedia summary here) because colonising Mars et al will need some plants that do a great job making oxygen from exhaled CO2. James Clarke at learniture.co.uk then made some of that list congruent with a list of plants that do not cause irritation or worse in contact with children, and that gives a definitive list (the Clarke List) of these few ideal plants (super sensitive kids, leave out 3 and 4):
1: Dwarf Areca palm – (Dypsis lutescens)
2: Boston Fern (Nephrolepis exaltata)
3: Devil’s Ivy (Epipremnum aureum)
4: Chinese Evergreen (Aglaonema commutatum)
5: Spider Plant Chlorophytum comosum)
6: Aloe Vera”