It isn’t magic, it’s transpiration: plants release water vapour through their leaves, and that process draws heat from the air around them. A single pot barely registers, but a group of plants together creates a cooler, more humid little microclimate — exactly what dry summer air could do with.
The ones that do it best have big leaves and grow fast: spider plant, pothos, peace lily, Boston fern and areca palm. Group them near where you spend the day, water them early in the morning and mist the leaves in the evening. And if you have a sunny balcony, a climber on a trellis makes a green curtain: shade that transpires as well.
Let’s be honest: they won’t replace your fan. But they take the edge off, they don’t use a single watt and in winter they’re still decorating the place. Few things give you so much for so little.
Start today: group three pots near where you spend the afternoon. Your own microclimate, up and running.