Home & Living
The Cleanest Air in Your Home: a HEPA Guide
Everything you need to know about HEPA filters and indoor air quality in UK homes.
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Table of contents
The essentials
FAQs
What does HEPA actually mean?
HEPA stands for High-Efficiency Particulate Air. A true HEPA filter (H13 grade) captures 99.97% of particles 0.3 microns and larger.
What is the difference between HEPA and HEPA-type filters?
True HEPA (H13/H14) meets strict EU standards. HEPA-type or HEPA-like filters have no regulated standard and may capture far fewer particles.
Do I need an air purifier if I open my windows?
Opening windows helps, but in UK cities with high traffic pollution, a HEPA purifier filters out particles that fresh air brings in.
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