How much is nitrous oxide per pound?

-how much does nitrous oxide cost approx? Avg is $3.50 to $6.00 per lb I pay about $30-$35 per 10lb fill.Click to see full answer. Also question is, how long does a 10lb bottle of nitrous last?I’d say it’s around 1lb of N2O for every 10 seconds of 100 shot. So a 10lb should last around 100 seconds, give or take.Furthermore, how much does it cost to fill a 10 pound Noz tank? average is $4 to$5 dollars a pound. Look up a performance shop nearby if they don’t fill it they should know where it can be filled. In respect to this, how much does it cost to fill a nitrous oxide bottle? Going rate for Nitrous is about $3.50/lb so a 10lb. bottle to fill the first time should be about $35.00. everytime after that, make sure you see them weigh the bottle before and after they fill it. generally there is a couple pounds left in it.Do you need a license to buy nitrous oxide?Nitrous oxide canisters made for the purpose of prolonging the shelf life of whipped cream and other products are completely legal and readily available. Anyone can buy these without a permit. Supply of nitrous oxide for recreational purposes is illegal under the Psychoactive Substances Act 2016.