10 Best Air Purifiers

The Levoit Core 300 air purifier is a solid choice for medium to large rooms up to 80 square metres, making it suitable for most bedrooms, living rooms, or home offices. Its Clean Air Delivery Rate (CADR) of 187 m³ per hour means it can refresh the air effectively—either once an hour for larger spaces or twice an hour for smaller ones, ensuring better air quality. It uses a three-stage filtration system including a true HEPA filter, activated carbon, and a pre-filter, which together remove 99.97% of common indoor pollutants like dust, pollen, pet hair, mould spores, and odors. This makes it especially helpful if you have allergies or pets. Four different filter options are available to target specific needs like toxins or bacteria, adding versatility.

Noise levels are impressively low thanks to QuietKEAP technology, with just 24 decibels in sleep mode, so it won’t disturb your rest. However, it is corded and not wireless, so placement depends on proximity to a power socket. Energy consumption is moderate, typical for devices of this type. Maintenance involves replacing the filters every 6 to 8 months, which is straightforward but an ongoing cost to consider. The unit also has convenient features like a timer, multiple fan speeds, and a filter replacement indicator. One plus is that it does not produce ozone, which some air purifiers do and which can be harmful.

Its size and performance suit bedroom or home use well, though it may be less ideal if you need a portable or very quiet device for smaller spaces. The Levoit Core 300 is a reliable, easy-to-use purifier that performs well in removing allergens and improving indoor air quality for typical UK homes.

The Shark NeverChange5 Air Purifier is designed to cover medium to large rooms up to 60 square meters, making it suitable for bedrooms, living rooms, or open-plan spaces. Its standout feature is the long-lasting HEPA filter, which does not need replacing for up to 5 years under normal use. This is a significant advantage since filter replacements can be costly and inconvenient. The purifier uses a 4-layer system that traps common allergens like dust, pollen, and pet dander, and also includes technology to neutralize odors and release a fresh scent, keeping your home smelling clean.

It has a clean air delivery rate (CADR) appropriate for its room size, and the device adjusts its cleaning power automatically based on real-time air quality readings shown on an easy-to-read LED display. The noise level is very low at around 5 dB, making it quiet enough to run overnight without disturbing sleep. Energy consumption is modest at 26 watts, which makes it economical to operate daily. Maintenance is straightforward with an easy-to-clean pre-filter and the benefit of infrequent filter changes.

While it offers multiple fan speeds and an auto mode, this purifier may not be the best choice for much larger spaces or rooms requiring rapid air cleaning beyond its specified coverage. Additionally, the fresh scent feature might not suit everyone's preference. With a 2-year guarantee (extendable on registration in the UK), this purifier is a reliable and user-friendly option for allergy sufferers or anyone wanting fresher indoor air without frequent filter hassles.

The LEVOIT Core Mini is a compact and lightweight air purifier designed for small to medium rooms up to 34 square metres, making it ideal for bedrooms or desktops. Its main strength lies in the three-layer HEPA filter, which effectively traps dust, pollen, pet dander, smoke, and odours, helping reduce allergy symptoms and improve air quality. The purifier runs quietly across three speeds, so it won’t disturb your sleep or work. It’s also energy-efficient, consuming only 7 watts, which keeps electricity costs low at about 28 pence per week if running continuously. Another nice touch is the personal aromatherapy feature allowing you to add essential oils for a pleasant scent. The unit does not produce harmful ozone, which is safer for home use.

Maintenance is straightforward with official replacement filters recommended every 4 to 6 months, although the filters add to ongoing costs. On the downside, the Core Mini is suited only for relatively small spaces and might not cover larger rooms effectively. While quiet, the noise level on the highest setting may still be noticeable to very sensitive users. It also lacks advanced features like smart controls or air quality sensors found in more expensive models.

This model represents a practical, affordable choice for anyone looking to improve air quality in smaller rooms with low running costs and simple operation, but it might not meet needs for larger spaces or those wanting more high-tech options.