#1
Good budget bedroom purifier for pet owners and families.
10 Best Under 100 Air Purifiers of 2026
#1
Good budget bedroom purifier for pet owners and families.
Best Value
#2
Great budget-friendly choice for larger bedrooms and living rooms.
#3
Suitable for small to medium rooms needing multi-stage filtration.
Best for Pets
#4
Best for pet owners who need fast, odor-focused purification.
Best for Quiet Bedrooms
#5
Great for pet households needing ultra-quiet, efficient purification.
Best Overall
#6
Ideal for bedrooms and smart-home users with allergies.
Best Overall
#7
Best for large rooms needing strong CADR and app control.
Buying Guide
Filtration type and effectiveness
Look for a True HEPA (often labelled H13) filter for reliable removal of fine particles like pollen, dust and pet dander. Many budget purifiers also include an activated carbon layer to reduce household smells and VOCs - check filter specifications rather than marketing terms.
Room size and CADR / coverage
Match the purifier’s stated coverage or CADR (clean air delivery rate) to the room you’ll use it in; budget models are best suited to small rooms such as bedrooms or home offices. If a model quotes square metres, aim for one rated for a similar or slightly larger area than your room for effective air changes.
Noise levels and night use
Noise varies a lot between models - a quiet ‘sleep’ mode makes a big difference if you’ll run the unit overnight. Look for decibel figures where given and read reviews for real-world performance, since fan speed and noise often trade off with cleaning speed.
Running costs and filter replacements
An inexpensive purchase can become costly if replacement filters are expensive or need changing frequently, so check filter life and price before you buy. Also consider energy efficiency and whether the unit has an eco or auto mode to reduce power use.
Features and build quality
Decide which extras matter - air quality sensors, auto mode, timers, app or voice control and multiple fan speeds are useful but not essential. Prefer units with straightforward filter-change indicators, a solid warranty and good after-sales support from UK retailers.
Frequently Asked Questions
What is the best under-£100 air purifier in 2026?
There isn’t a single best model for everyone - the best under-£100 purifier depends on room size and priorities such as quiet operation or low running costs. Popular contenders in this price band usually offer True HEPA filtration and are aimed at bedrooms/small living rooms; check recent reviews from UK retailers (Argos, John Lewis, Amazon UK) for current deals and model comparisons.
Is an air purifier worth buying in the UK?
Yes for many households - air purifiers can noticeably reduce indoor particulates like pollen, dust and pet dander, which helps allergy sufferers and improves general indoor air quality. They’re less effective at tackling the source of pollutants, so combine them with good ventilation and hygiene for best results.
Which under-£100 air purifier offers the best value for money?
Value depends on filter life, replacement costs and real-world performance; a model with a durable True HEPA filter and modest replacement price typically represents the best long-term value. Compare total cost of ownership (purchase price plus yearly filter cost) and select a purifier rated for the room you’ll use it in.
Levoit vs Xiaomi - which should I buy?
Both brands have strong budget options: Levoit tends to focus on quiet, bedroom-friendly units with good filter availability in the UK, while Xiaomi models often offer higher airflow and smart-home features. Choose Levoit if you prioritise low noise and easy filter sourcing, or Xiaomi if you want stronger performance and app integration - check current prices and filter costs locally.
Can under-£100 air purifiers remove viruses like COVID-19?
Air purifiers with True HEPA filters can capture aerosol-sized particles and may reduce airborne viral particles, but they are not a guaranteed method to prevent infection on their own. Use them as part of wider measures (ventilation, masks when appropriate) rather than relying solely on the device for protection.
Where can I buy a reliable budget air purifier in the UK?
Major UK retailers such as Amazon UK, Argos, John Lewis, Currys and direct brand stores are good places to compare models and prices, and they often list filter replacement parts. Look for retailers with clear return policies and UK-based support to simplify warranty or filter purchases.
How often do filters need replacing and how much do they cost?
Typical filter lifetimes for budget purifiers are three to twelve months depending on usage and pollution levels; activated carbon layers can saturate faster if you have strong odours. Replacement cost varies by brand and model, so check the price of genuine replacement filters before buying - inexpensive devices can be expensive to run if filter costs are high.
What is the best under-£100 air purifier for a bedroom in 2026?
Choose a unit with a True HEPA (H13) filter, low-noise sleep mode and coverage suitable for a small room (bedroom-sized). Models that combine good filtration with quiet operation and a filter-change indicator give the best balance for overnight use.
Is an under-£100 air purifier worth it in 2026?
Yes for targeted uses: if you need cleaner air in a single room (allergy relief, pet dander or smoke reduction) a budget purifier with True HEPA and activated carbon is cost-effective. For whole-house filtration or very large rooms, a more powerful (and expensive) unit is preferable.
Levoit Core 200S vs Xiaomi Mi Air Purifier 3H - which should I buy?
Pick Levoit if you prioritise quieter operation, straightforward filter availability and a bedroom-friendly design; choose Xiaomi for higher airflow and tighter integration with smart-home ecosystems. Both typically use True HEPA filtration, so base your choice on noise, app features and ongoing filter costs.
Which under-£100 air purifier is best value for money in the UK?
The best value models combine a True HEPA filter, low replacement-filter prices and proven performance for a room the size you need. Compare UK sellers for promotions, check filter prices, and prefer units with clear filter-life indicators and a decent warranty to keep long-term costs down.
Product Selection: Products are sourced via Amazon's Product Advertising API based on relevance, availability, and customer ratings.
Review Analysis: We use AI to analyze customer review trends, identify common themes, and summarize the key strengths and weaknesses of each product.
Scoring Independence: Our rankings and fit scores are generated algorithmically and are not influenced by commission rates or advertising relationships.
Affiliate Disclosure: We earn commissions from qualifying Amazon purchases made through our links at no additional cost to you.
Last updated: June 5, 2026
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