Air Purification near you

The Department for Education's guidance was written for schools and childcare settings rather than for homes, which is worth stating plainly, but it is the clearest published position a British department has taken on the product category and the physics does not change with the building. Its recommendation is limited to high efficiency particulate air filtration units. Its list of technologies it does not recommend covers ionisers, ozone generators and units using an unenclosed ultraviolet field.

The government advice behind that is more specific about why. The scientific advice that fed into this guidance stated that the use of some other types of air cleaning technology, for example ozone generators and plasma-based technologies, produces pollutants which are harmful to health, and warned that if the concentration of ozone is sufficient for a device to disinfect a room effectively, it is likely that the concentration will also exceed safe limits for the people in it. Ozone is treated as a hazard in its own right in Britain; the Health and Safety Executive publishes guidance on it, EH38, now in its third edition from 2014, aimed at employers and managers of people exposed to ozone at work.

There is no domestic product approval scheme sitting behind any of this. Nobody is checking that a unit sold for a bedroom does what it says, which is why the safest reading of the guidance is also the simplest: buy filtration, avoid anything that generates a reactive substance, and treat health claims on packaging as marketing rather than as evidence.

British advice consistently ranks the three interventions in that order. NICE's guideline on indoor air quality at home, published on 8 January 2020, puts it directly: usually the most effective way to deal with indoor pollutants is to remove the source or reduce emissions from it, and where that is not possible the pollutant can be diluted by ventilation, such as by opening windows, to reduce exposure. Filtration is not in that sentence, which is a deliberate ordering rather than an omission.

COMEAP's December 2025 response reinforces why the ordering matters. It reports that the committee looked at the evidence for specific interventions such as air filtering systems or air purifiers but agreed that buildings vary so much that it would not be practical to make specific recommendations. It accepts that portable filtration cleaners produced short-term reductions in indoor fine particulate concentrations with the potential to offer health benefits, while noting the direct evidence for those benefits was weak.

The practical consequence is that a purifier is worth considering after the obvious work is done, not instead of it. Venting the cooker hood outside, extracting the bathroom properly, stopping smoking indoors, choosing lower-emitting products, and ventilating when the outdoor air is clean all move more than an appliance in the corner. Where outdoor air is genuinely poor, filtration earns its place, which is precisely the situation Approved Document F has in mind when it discusses minimising the intake of external pollutants.

Portable filtration units are retail purchases with no installation involved, and the recurring cost is filters rather than labour. The jobs a homeowner actually hires for sit around the appliance: improving extraction in a kitchen or bathroom, fitting or upgrading continuous ventilation, dealing with a mould problem properly, or adding filtration to a mechanical ventilation system in a home that has one. Those quotations turn on duct routes, how much making good is needed, how many rooms are involved and whether the underlying building fault is being fixed at the same time.

LokalMatch's role is limited to making the introduction. Explain the problem once alongside your postcode — what you are trying to reduce, in which rooms, and what ventilation exists already — and ventilation and indoor air specialists covering your area contact you. There is no cost to homeowners; pros pay for the requests they receive. LokalMatch does not undertake the work, does not set the prices and does not vet, rank or recommend anyone who responds, so it is worth asking each of them what they would change about the building before recommending equipment.