* 99.5% Air filtration rate * Features a Pre-filter, HEPA filter for fine particles and carbon filter to help remove unwanted odours * Built in aromatherapy diffuser function - just add your favourite scented oils * Built in 8-hour timer * 2 year guarantee Breathe cleaner, fresher air with this Swan home air purifier. It has a pre-filter, HEPA filter, and carbon filter – that means it can catch up to 99.5% of nasty little troublemakers like bacteria, pollen and allergens. The 8-hour timer lets you set it to come on at specific times, so you can sit back and relax. There's even an essential oil diffuser – just add a few drops of your favourite oil and make your home a haven of calm.