Electrolux Deep H13 technology provides 99.97% particle filtration of 0.3µm micron and contains particles down to 0.1µm in size, helping to ensure minimum PM2.5 levels. A unique layer of highly porous activated carbon binds odours and gases and efficiently cleans the room air of unpleasant odours. Depth filtration technology captures 99% of bacteria and irritants in the air and helps you breathe cleaner, healthier air. Each Pure A9 filter is equipped with a Smart Tag. The Pure A9 recognises how well your Breeze filter is performing and when it’s time to change it.