Air filter with a structure suitable for fast purification in a standard time. It has a PM2.5 sensor, meaning it measures air quality, and if it's polluted, it changes color (green = clean, yellow/red = polluted) and automatically increases suction power. Suitable in various places In homes: bedroom, living room, majlis, kitchen, storage room In animal places: sheep pen, bird cage, cat room.. Any closed place with dust, odors, or allergies... benefits from it 👌 New, unused Diameter 43 cm