Air Purifier Guides

Data-driven guides built on UK specs, UK energy prices, and UK standards.

• What Is CADR? — Why m³/h is the right unit for UK buyers, and how to convert from CFM.
• Air Purifier Running Costs UK — True annual costs using Ofgem Q1 2026 rates across 16 models.
• Air Purifier vs Dehumidifier UK — Symptom decision matrix for UK damp and mould problems.
• Do Air Purifiers Help With Mould? — Claim-by-claim table: what purifiers actually do and don't do.
• How Often to Replace Your Filter — Filter timing guide with cost table from real UK filter prices.