Chat’s saying it’s a myth!

Here’s the science:

1. Photosynthesis (Daytime): During the day, plants use sunlight to convert carbon dioxide (CO₂) and water into glucose and oxygen (O₂). So, yes—they release oxygen during the day.
2. Respiration (Day & Night): Plants constantly perform cellular respiration, where they consume oxygen and release CO₂ to generate energy, just like humans. This happens all the time, day and night.
3. Net Effect: During daylight, the oxygen produced in photosynthesis exceeds the oxygen they consume in respiration, so they are net oxygen producers. At night, there’s no photosynthesis, only respiration, so they do consume oxygen.
4. Indoor Safety: The amount of oxygen a typical houseplant uses at night is extremely tiny—far too small to affect indoor oxygen levels or be harmful to humans. You would need an impractical number of plants in a sealed room for it to matter.

✅ Bottom line: It’s mostly a myth that indoor plants “steal your oxygen at night” in any dangerous way. They’re safe to have in bedrooms. In fact, many people find the mild increase in humidity and the CO₂-oxygen balance psychologically pleasant.