Dyson Purifier Big+Quiet Formaldehyde review: Combat indoor air pollution with Alpine freshness - Worried about the air quality in your home? Fire up Dyson’s big gun for a blast of fresh air ...

Air purifiers work best when there’s one per room, ... Cue Alpine levels of freshness. Buy now £879, Very. HoMedics TotalClean PetPlus 5 in 1. HoMedics. Best for: All-areas air freshening.