I was looking at this a few days ago http://www.philips.co.uk/c-p/AC3256_30/3000-series-air-cleaner http://www.philips.co.uk/c-p/AC3256_30/3000-series-air-clean

I was looking at this a few days ago http://www.philips.co.uk/c-p/AC3256_30/3000-series-air-cleaner http://www.philips.co.uk/c-p/AC3256_30/3000-series-air-clean... It has good reviews on Amazon, but it's not cheap.