Levoit Air Purifiers for Home Bedroom With HEPA & Carbon
A capable multi-stage air purifier with a CADR of 187 m³/h, held back mainly by a few practical limitations.
Air Purifier Running Costs in the UK (Electricity + Filters)
Air purifiers are cheap to run by appliance standards, but the costs add up over time, mostly through filters. This guide breaks down what a purifier really costs to run in the UK, from electricity to replacement filters.
The short answer
Running costs come in two parts: electricity, which is usually modest, and replacement filters, which are the bigger ongoing expense. A typical purifier draws only a small amount of power, especially on lower settings and auto mode, so the filters - not the electricity - are what to budget for. Always check filter prices and intervals before you buy.
Electricity costs
Most home purifiers use relatively little power, similar to a household fan or less, and far less than heating appliances. Running on a lower or auto setting cuts consumption further, since the fan only ramps up when needed. Over a year the electricity is a minor cost for most units; the higher the fan speed and the longer it runs, the more it uses.
Filter costs are the main expense
Replacement filters are the real running cost. A combined HEPA-and-carbon filter typically needs changing every several months to a year depending on use, and prices vary widely by brand. A cheap purifier with expensive or short-lived filters can cost more over time than a pricier unit with affordable, longer-lasting filters, so factor this in upfront.
How to keep costs down
- Use auto mode or a lower setting so the fan is not always at full power.
- Clean the washable pre-filter to extend HEPA life.
- Run it in a closed room so it works efficiently.
- Check filter prices before buying the purifier.
- Right-size the unit so it is not straining in too large a room.
Working out the real cost
To compare models fairly, add the filter cost over a year to the electricity. Look up how often the filters are due and what they cost, then judge the purifier on its total annual running cost rather than the sticker price alone. This is where a well-chosen mid-range unit often beats a cheap one with costly consumables.
Common mistakes to avoid
- Comparing only the purchase price, not the filter cost.
- Running on full power when auto or low would do.
- Letting a clogged pre-filter shorten HEPA life.
- Buying a cheap unit with pricey, short-lived filters.
- Oversizing or undersizing the unit for the room.
Our top picks
#1
#2 
Winix Zero Filter A for Air Purifier
A capable multi-stage air purifier with solid filtration, held back mainly by the lack of smart-home features.
#3 
Winix Air Purifier for Home Bedroom
A capable 4-stage air purifier with a CADR of 390 m³/h, capturing 99.999% down to 0.1 microns, held back mainly by the lack of smart-home features.
#4 
Xiaomi Mi Air Purifier HEPA Filter Suitable for
A capable multi-stage air purifier with solid filtration, capturing 99.97% down to 0.3 microns, held back mainly by a few practical limitations.
Frequently asked questions
How much does it cost to run an air purifier?
Electricity is usually modest, similar to a fan or less, especially on low or auto settings. The bigger cost is replacement filters, which need changing every several months to a year depending on use.
Are air purifiers expensive to run?
Not especially - the electricity is low for most models. The main expense is replacement filters, so a cheap purifier with costly or short-lived filters can end up dearer over time than a pricier one with affordable filters.
Do air purifiers use a lot of electricity?
No - most use relatively little power, comparable to a household fan, and less on lower or auto settings. Heating and cooling appliances use far more. The filters, not the electricity, are the main running cost.
Bottom line
Our top pick is the Levoit Air Purifiers for Home Bedroom With HEPA & Carbon (our score 9.5/10) - A capable multi-stage air purifier with a CADR of 187 m³/h, held back mainly by a few practical limitations..