There are quite a number of indoor plants producing oxygen at night. The 20 most popular ones are Aloe vera, Gerber daisies, Philodendrons, Valerian plant, Lavender plant, Tulsi, Christmas cactus, Chrysanthemum, Pothos, Chamomile, Snake plant, Orchids, Peace lily, Spider plant, English ivy, Neem, Areca palm, Peace lily, Weeping fig, and Bamboo plant.