I have recently been on a mission to improve the air quality in my home, it started with my review of the Dyson Pure Cool air-purifying fan which significantly improved some breathing issues I had due to chronic congestion.
The top model from Dyson, so it doesn’t come cheap at close to £600, but this offers whole-home cleaning with a 60min charge and it is CERTIFIED asthma and allergy-friendly with a washable filter