5000sq.ft Large Coverage: VEVOR's 850ml HVAC scent air machine for home, designed for spaces up to 5000sq.ft, fills your space with high-quality, stylish scents. Whether wall-mounted or freestanding, it infuses your space with wonderful and relaxing ambiance, promoting better sleep and improving indoor air quality. Upgraded HVAC Connection: Whether you're at home or in a commercial setting, our HVAC cold air diffuser ensures consistent and long-lasting fragrance coverage all over your room. It makes the scent fill room up to 100-5000 Sq.ft, creating a wonderful and relaxing ambiance for your bedrooms, bathrooms, office room, spa space. Scent Up to Every Corner: With the upgraded cold air diffusion technology, our aromatherapy diffuser quickly releases the nano particles into the air, ensuring rapid and effective scenting of your living space. 0.1 - 2.0 g/h low essential oil consumption promises prolonged use and continuous aromatic bliss