Yes, but with important limitations. Mist fans CAN be used indoors, but they're designed for outdoor/semi-open spaces. Indoor use considerations: Well-ventilated rooms only: Living rooms with open windows, covered balconies, verandas, semi-open kitchens. NOT suitable for: Small enclosed bedrooms, air-conditioned rooms, areas with poor ventilation, near electronics/computers. Risks of indoor use: Increased humidity can cause discomfort in small rooms (feels sticky), Water mist can damage wooden furniture, electronics, and fabrics over time, Excessive moisture promotes mold growth on walls, Floors can become slippery from water droplets. Best indoor applications: Semi-open spaces: Covered patios, balconies with railings, verandas, Large well-ventilated halls: With ceiling fans or windows open for air circulation, Indoor-outdoor transitional areas: Near French doors, open terrace doors. Recommendation: If you want indoor cooling, consider regular pedestal fans, BLDC tower fans, or air coolers instead. Reserve mist fans for true outdoor spaces (patios, gardens, open terraces) where moisture dissipates naturally.