Experience the ultimate in home fragrance with our Luxury Small Hvac Diffuser. Perfect for complete home or small business use, our diffuser uses waterless/heatless oils-cold-air diffusion technology to convert fragrance oils into a dry mist, leaving behind no residue. Enjoy a clean and efficient scent experience. This diffuser simply hooks into your hvac unit misting dry mist through the air turning any home or small business into the ultimate fragrance experience. You can also use as a stand alone diffuser. Waterless/heatless oils-cold-air diffusion technology converts fragrance oils into a dry mist without the use of heat or water Residue Free Safe for pets and Children Covers: 3000 sq/ft Size: W 7.28" x D 7.28" x H 23.85" Weight: 8 lbs Capacity 800 ml Wifi app capability and touchscreen display (no remote control) Customizable fragrance intensity