Japan has a wide range of air purifiers designed for different needs. Whether you’re looking for a compact unit for a small space or a high-performance system to tackle allergies. Choosing the right one depends on factors like your room size, air quality concerns, noise levels, and extra features like light control (especially if you’ll use it in your bedroom at night!). 

To help you find the best fit for you to live in a clean, allergy-free environment, here are some popular recommendations based on different needs. 

Best Air Purifiers for Small Rooms on a Budget: Levoit Core 300

The Levoit Core 300 is a compact air purifier designed for small to medium-sized rooms. It features a three-stage filtration system, including a pre-filter, true HEPA filter, and activated carbon filter, effectively removing allergens, smoke, and odors. Its sleek design and efficient performance make it a popular choice for personal spaces. It also has a timer and child lock function for increased convenience. It’s so well known that it’s one of the best selling model in the U.S., too.

• Filter Type: Pre-filter, true HEPA filter, activated carbon filter

• Room Size: Ideal for rooms up to 20 square meters

• Noise Level: Operates at 24 to 50 decibels, ensuring quiet operation

• Light Control: Features a display-off button for a dark bedroom environment

• Price: Approximately ¥10,000

Best Air Purifiers for Allergies: Coway Airmega 400 

If allergies turn your home into a sneezing battleground, the Coway Airmega 400 is a great defense. Designed for larger spaces, this powerhouse features a dual HEPA filtration system that captures dust, pollen, and other airborne irritants with impressive efficiency. It automatically adjusts its fan speed based on air quality, ensuring optimal purification without wasting energy. Plus, with its sleek, modern design, it won’t be an eyesore in your home. Its four-stage filtration system includes a washable pre-filter, deodorization filter, true HEPA filter, and vital ionizer, ensuring comprehensive air purification.

• Filter Type: Washable pre-filter, deodorization filter, true HEPA filter, vital ionizer

• Room Size: Effective for areas up to 48 square meters

• Noise Level: Operates at 51 decibels, suitable for quiet environments

• Light Control: Features an air quality indicator light that can be turned off for nighttime use

• Price: Approximately ¥48,000

Best Air Purifiers for Families: Dyson Purifier Humidify+Cool Formaldehyde™

The Dyson Purifier Humidify+Cool Formaldehyde™ is a multifunctional device that combines air purification, humidification, and cooling. It features a HEPA filter capable of capturing 99.97% of particles as small as 0.3 microns and includes a formaldehyde sensor to detect and destroy formaldehyde molecules. Its bladeless fan design ensures safety, making it ideal for families with children. It covers a large area of 81 square meters for family-sized home, but with it comes a higher budget. 

• Filter Type: HEPA filter, activated carbon filter, formaldehyde sensor

• Room Size: Suitable for large rooms up to 81 square meters

• Noise Level: Operates at 51 dB decibels, with a quiet night mode

• Light Control: Equipped with an auto-dimming LCD screen for undisturbed sleep

• Price: Approximately ¥70,000If you suffer from allergies, you might also find our Guide to Drugstore Hayfever Medicine in Japan a further helpful resource, and if you’re looking for prescription medicine, check out our Guide to English-Speaking Clinics in Tokyo.