Product Reviews

Welcome to Consumer Reports.

We’re so glad to have you as a member. You now have access to benefits that can help you choose right, be safe and stay informed.

GermGuardian AC5900WCA air purifier

This portable air purifier from GermGuardian is primarily filter-based and has a filter indicator and programmable timer, and 3 speeds. It’s designed for floor use in a large room.

About

Overall score for the GermGuardian AC5900WCA is mainly how well the model removed dust and smoke from a test chamber, plus quietness for room purifiers.
Dust/pollen/smoke removal: How well models cleared air of fine clay dust and cigarette smoke; performance of portables is at their highest and lower speeds. Ones that scored well for dust removal should perform comparably for pollen.
Noise: Based on instrument measurements with a portable model running at its highest and lowest speeds.