Considered the Worlds safest and most tested air purifier, this unit uses a worldwide patented technology based on heated air to destroy 99.99% of airborne mould, bacteria, viruses, dust-mites allergens, and pollens. Unlike commonly available ionic units, it does not produce harmfully elevated ozone levels; it also reduces existing indoor ozone, which the America Lung Association states can be a serious respiratory irritant and asthma trigger. For extended information click Price: £139.95