AQI not coming up (62% of tickets): Polybag not removed (11%), filter/sensor cleaning resolves most cases (21%/17%). 25% CX unreachable — high OB NC rate is a process gap inflating repeat tickets.
AQI not dropping (18%): Room size/ventilation mismatch is a major driver (36%). Filter+sensor cleaning resolves ~50% on first contact. 34% needed video call — complexity is higher.
Q1000 AQI not dropping: Room size mentioned in 74% of comments — strongest product-room mismatch signal across all segments. Recommend product placement guidelines review.

Q1000 (2.8% escalation): Room size mismatch in 74% of AQI-not-dropping agent comments. Product may be marketed for rooms it can't effectively purify. Review placement/sizing guidelines.
Nov spike (26/36 escalations): Coincides with W45–W46 surge (960 tickets in 2 weeks). Cross-check shipment batch dates — likely a cohort of units activated in Oct/Nov with sensor/polybag issues.
OB no-contact rate (25% of AQI-up tickets): Agents marking "NC" and closing without follow-through. Inflating repeat ticket volume. Needs stricter OB call SLA enforcement.