ac smoke detector battery backup

First Alert Alarm Smoke DC SMI100 Clam 2pk Tray: 9-Volt Battery, White, Smoke & Fire Detector, 10-Year Warranty

First Alert® SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm with Voice and Location Alerts

First Alert CO605 Plug-in Carbon Monoxide Detector with Battery Backup: 9-Volt Alkaline, No Hardwired Installation Needed

First Alert CO400 Battery Powered Carbon Monoxide Detector: 9-Volt CO Alarm, Silences Unwanted Alarms, 7-Year Warranty

First Alert 2pk CO400CN2 Battery Powered Carbon Monoxide Detector: Best CO Detector, 9-Volt Alkaline Battery Included

Honeywell Uber Heat 5 Ceramic Heater Black

Handheld Fan - Bullseye's Playground™

Honeywell UberHeat 5 Ceramic Heater White: Portable Electric Indoor Heater, Adjustable Thermostat, 1500W, ETL Listed

Honeywell HHF360B 1500W 360˚ Surround Indoor Heater Black: Portable Space Heater for Bedroom, ETL Listed, Fan Driven

Levoit Core 300 Air Purifier White

Dreo 1500W Atom Core Portable Oscillating Ceramic Space Heater for Home with Remote and Thermostat 1-12H Timer Silver: Indoor Heater for Bedroom

Shark Never Change Air Purifier Max HP302: True HEPA, 5 Settings, 1200-1500 sq. ft., Programmable Timer, CARB Certified

EVO Low Profile Oscillating Window Fan Air Circulator: Portable, Quiet, 4 Speeds, Remote, ETL Listed, 200-500 sq. ft.

Vornado Velocity 4 Whole Room Vortex Indoor Heater: Portable Electric Space Heater with Adjustable Thermostat, 1500W, Black

Airthings Wave Enhance Indoor Air Quality Monitor