Cadr

Buy by smoke CADR, not inflated room claims. These wildfire-smoke air purifiers fit real bedrooms, living rooms, and cleaner-air rooms.

Enter your room dimensions to calculate the smoke CADR and air changes you need, with separate guidance for everyday use and wildfire smoke.

Blueair 311i Max vs 311i+ Max, with smoke CADR, room-size math, filter compatibility, and which model makes sense for bedrooms, offices, smoke, and larger rooms.