10 Best Air Purifiers

The LEVOIT Core 400S Air Purifier is designed for large rooms up to 83m² and is equipped with a high CADR of 400m³/h, making it efficient in cleaning air quickly. It features a 3-stage HEPA filter, which is excellent for capturing dust, pollen, pet dander, and other tiny particles, making it ideal for allergy sufferers. The 360° air intake design ensures that it purifies the air evenly in a room, and the PM2.5 air quality sensor helps the unit automatically adjust its settings based on the detected air quality, which is very convenient.

The noise level is impressively low at 24 dB in sleep mode, ensuring it won't disturb your rest. It is also energy-efficient with a wattage of 38, which should keep running costs down. Additionally, the smart features such as Alexa compatibility and the VeSync app provide user-friendly control from anywhere. Maintenance is straightforward with a filter replacement recommended every 12 months, and the product comes with a two-year warranty for added peace of mind.

However, some users might find the initial cost and the size (27.4 x 27.4 x 51.9 cm) a bit bulky. Also, while the smart features are a plus, they might be overwhelming for someone who prefers a more straightforward, manual operation. Despite these minor drawbacks, the LEVOIT Core 400S is a robust choice for anyone looking to improve their home’s air quality effectively.

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 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.