MUJI Ultrasonic Aroma Diffuser vs Now Ultrasonic Real Bamboo Diffuser

The MUJI is the better-built, quieter pick for a bedroom or desk, and owners report units that keep working for years. The NOW covers a much larger room and runs far longer per fill, but it has a lower rating and a plastic-and-bamboo build that feels less refined. Buy the MUJI for a small, calm space and the NOW for a big living room or all-day mist.

• Choose the MUJI Ultrasonic Aroma Diffuser if you want a compact, quiet diffuser for a bedroom or desk and care most about build quality and a soft warm light.
• Choose the NOW Real Bamboo Diffuser if you need to scent a large room and want long continuous or intermittent runs with color-changing light.