back up power for filter. keep smell down.

[DankHobbyist]

Is there any thing I can do to have back up power for my ventilation setup if power goes out? Fan used 125 Watts. Would feel best with 48 hour back up. Power is liable to go out here for winter usually no more than 4 hours. Any suggestion welcome. Can't be having apt complex smelling like Mr nice guy if power is out.

 

[Joe420Camel]

Home PC UPS comes to mind.
any single unit that would (could) do 125w for 48 hours would be waaay out of a "reasonable" price range.
maybe multiple smaller units?

www.amazon.com/CyberPower-CP1500AVR...TF8&qid=1419035771&sr=8-2&keywords=ups+backup