#1
Best for quiet large-room cleaning, odor or smoke help, and live air-quality feedback. Skip it if sensor reliability, filter sourcing, or low long-term cost matters most.
Pros: particle removal effectiveness, real-time air quality monitoring
Cons: customer support, durability
#2
Best for easy, responsive air cleaning in pet, dust, cooking, or allergy-prone rooms. Skip it if sensor reliability, high-speed noise, or filter cost would frustrate you.
Pros: particle removal effectiveness, sleep mode
Cons: power connector fit, safety concerns
#3
Best for quiet bedroom-size cleaning, clear air-quality readouts, and allergy or odor relief. Skip it for large rooms, app control, low-cost filters, or maximum airflow value.
Pros: particle removal effectiveness, PM2.5 detection
Cons: durability, aromatherapy feature