An air purifier for hay fever is a unit that draws room air through a fine particulate filter so that pollen carried indoors is captured rather than breathed. It is one of several practical steps - along with how you manage windows, doors and cleaning - that reduce the pollen a workplace holds without anyone taking anything. Ravair is a UK supplier of HEPA and activated carbon air purification, and this guide sets out what helps, what does not, and where a purifier fits.
A plain limit first: we supply equipment; we are not a health authority and this is not medical advice. If hay fever is affecting your work, a pharmacist or GP is the right person to talk to about treatment. What follows is about the air in the room.
Why is hay fever often worse at work than at home?
Because a workplace is usually a shared room with doors opening all day, windows propped for air, and more people walking pollen in on clothes and hair. At home you control the windows and the vacuuming; in a salon, office or workshop you control very little of either, and the room is often smaller and busier.
Pollen is a particulate. Once it is indoors it behaves like any fine dust: it hangs in the air for a while, then settles on surfaces, and is stirred back up by movement - a door, a fan, a hairdryer, a client sitting down. A room that is cleaned by sweeping and dusting moves pollen around more than it removes it. That is why the two levers that work indoors are stopping it coming in, and capturing what does.
A salon has a further complication. The same room often carries other airborne loads - filing dust and product vapour at the nail desk, hair and spray in the styling area - and the ventilation that deals with them, an open door or a fan pulling in outside air, is also the route pollen uses to come in.
What reduces pollen indoors without medication?
Four things, in rough order of effort. Keep windows and external doors closed during the hours when pollen is highest, and use mechanical ventilation or a purifier for air movement instead of an open window. Clean with methods that capture rather than scatter: a damp cloth on surfaces, a vacuum with a fine filter on floors and fabric, rather than a duster and a broom.
Think about what comes in on people. Coats and jackets hung near the door rather than at the workstation keep the pollen they carry away from the room's centre. Where staff have a change of top for work, it stays cleaner for longer.
Then filter the air that is already inside. A purifier with a HEPA-grade particulate filter draws room air through a medium fine enough to hold pollen, and returns the air without it. It does not stop pollen arriving - nothing indoors does - but it steadily reduces what is circulating between arrivals, which is the part you can actually control.
How does a HEPA air purifier help with pollen?
A HEPA filter is a dense particulate filter that captures fine particles from air passed through it. Pollen grains are large by the standards of what such a filter is designed to hold, so the filter is not the limiting factor; the limiting factors are whether the unit moves enough air for the size of the room, and whether the filter is changed before it loads up.
Two practical points follow. First, match the unit to the room: a small desktop purifier in a large open salon will clean the air immediately around it and little else. Second, position it where air moves - near the door people come through, or centrally where it can draw from the whole room - rather than behind a display where the intake is starved.
Our air purification range combines HEPA-grade particulate filtration with activated carbon, because a salon's air rarely carries only one thing. The virus protection and air purification units we supply were built for shared rooms where people breathe the same air for hours; pollen is one more particulate they hold.
Why add activated carbon if pollen is the problem?
Because pollen is seldom the only thing in the room. Activated carbon is a filtration medium that holds vapours and odours - product fumes, monomer, hairspray, cleaning chemicals - which a particulate filter passes straight through. A hay fever sufferer who is also irritated by strong smells at work is dealing with two different loads, and a purifier with both stages addresses both.
We sell our carbon refills by weight, as granular carbon rather than a thin impregnated pad, because the quantity of carbon is what determines how long it keeps working. A purifier that smells of the room within weeks has a carbon stage that was never large enough. For a salon, read which purifier suits a salon room for the sizing questions.
What will an air purifier not do?
It will not stop hay fever. It reduces the pollen circulating in a room; it does not remove what is already on the desk or in the carpet until that is disturbed and drawn in, and it does nothing about the pollen you meet outside. Anyone who tells you a purifier will make symptoms disappear is selling, not advising.
It also does not replace ventilation. Workplaces have a duty to be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992, regulation 6; a purifier can be part of how "purified air" is provided, but it is not a reason to seal a room. And where a nail or beauty room produces dust and vapour at the desk, a purifier is general ventilation - the local extraction at the station, which HSE asks for separately, still has to be there.
Our approach is to say what a unit will and will not do for your room. Ravair has been developing practical clean-air and energy products in the UK since 2015, and our units are installed in schools and gyms in East Sussex - rooms full of people, doors opening all day, the same problem as yours.
Frequently asked questions
Does an air purifier help with hay fever?
It reduces the pollen circulating in a room by drawing air through a fine particulate filter. It does not stop pollen arriving or treat symptoms; it lowers what is in the air between the doors opening. For treatment, speak to a pharmacist or GP.
Which is better for pollen, HEPA or activated carbon?
HEPA-grade particulate filtration captures pollen; activated carbon holds vapours and odours and does nothing for pollen on its own. Most shared workrooms benefit from both stages because they carry both kinds of load.
Where should an air purifier go in a salon?
Where air moves and the intake is not starved: near the entrance people come through, or centrally, not behind a display or under a shelf. Size it to the room; a small unit cleans only the air around it.
Should I keep windows shut if staff have hay fever?
Closing windows and external doors at peak pollen times reduces what comes in, but the room still has to be ventilated. Use mechanical ventilation or a purifier for air movement rather than sealing the room entirely.
Can the same purifier deal with nail dust?
As general ventilation, partly. HSE asks nail bars for local exhaust ventilation at the desk - a downdraught table or hood - as the first control; a room purifier supports that but does not replace it.
This article is general information about indoor air, not medical or health and safety advice. For hay fever treatment consult a pharmacist or GP; for workplace duties check current HSE guidance.
See the air purification and virus protection units we supply, or call 01892 750777 with the size of your room and how many people share it.
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