lasts for hours. It says 24 but my nose doesnt really work so for me its 1-3. Get for the car too.

One love
c
karmaxul Reviewed by karmaxul on . Carbon Filter and Ozone? Is it necessary to have a carbon filter and an ozone generator to take care of the smell of 6 or so plants? If not, then which one is better? And with the carbon filter, can I place the can in the grow room and have the air sucked through, or do I have to blow the air into the can? Sorry for the stupid questions, I'm new, lol. Rating: 5