Sky News host Paul Murray says the federal government's proposed vape bans are a "weird way to go about this".

"It feels like we've got this weird contortion position which is we wanted to ban vapes because vapes (are) bad," Mr Murray said.

"But now, vapes available but only in chemists and as we found out from behind the scenes with the Health Minster today, it's up to you to tell them how much a month's nicotine you need.

"This feels a weird way to go about this."