Alero PT Chameleon multi-phasing passive air freshener refills are aerosol, battery and propellant free. VOC exempt. Certified as carbon neutral. Refills are infused with high quality perfumes, complemented by an integrated internal fragrance core. These combine over time and diffuse powerful key fragrance notes that are subtly different. Refills fit competing dispensers. The multi-phasing, sub-micron fragrance technology running through the outer capsule and the fragrance core enables a consistent fragrance delivery. Utilizing ‘sub-micron' fragrance technology, enabling superior fragrance delivery with particles sized below 1.0 micron. The refills are totally organic, totally biodegradable, and the dispenser is manufactured from 100% recycled materials and is recyclable. Part of the 'Synchronized Scents' program. Approximate refill weight: 7.7 oz.