A powerful and compact design air purifier that cleans up to 33 square meters and it fits in any space from bedrooms, medium sized living rooms, gyms, offices, basements and more Simply turn it on and enjoy your cleaner air, quiet enough to run all night long, even on the highest fan setting Equipped with washable pre-filter, allergen-free Catechin deodorizing, humidifying HEPA filter that removes pet, tobacco, cooking, toilet, sewage outlet odors This Hitachi Air Purifier suppresses build-ups of mold, cedar pollen and dead house dust mite substances Has 6 auto modes: Air purify, Humidify, Skin Moist, Pollen, Strong Deodorization, Eco and easily operated through remote control With odor and humidity sensors that automatically adjusts the fan speed to maintain clean air and this air purifier has British Allergy Certification seal Has a low noise operation with 4 hours Off-timer and a tank capacity of 2.5 liters