Function: featuring odor neutralizing technology, with odor neutralizing technology to prevent bad odors inside the vacuum cleaner. Yellow Zesty Lemon scent. Easy to install: No other tools required, align the arrows on with the arrows on the nozzle, insert the odor neutralizer and turn the intensity dial to the desired setting. Recommended replacement: It is recommended to replace every 4-6 months for optimal results. Area of use: Tailored for families with pets, smokers, or those passionate about keeping their homes fresh and clean at all times. Compatible with AZ3000 AZ3002 HZ3000 HZ3002 IZ862H IZ562H ZD550 Vacuum Cleaners Note: the physical product may have a slight color difference or variation, does not affect use, please do not mind, thank you! Color: C: Lavender Aromatherapy Material: plastic Package contents: 4 x Odor Eliminator Replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.