inverter for motorhome

[JOHNLINSKEY]

Can i purchase inverter to power hair/dryer charge laptop etc, i do not want for excessive use. Any advice appreciated.

 

[ChrisK5]

For sensitive electronic equipment like computers, you would be better off with a "pure sine wave" inverter.

 

[TonyJones]

For most laptops you can buy 12v chargers fairly cheaply, to plug into the cab socket ("cigarette lighter"). Try Googling the name of your laptop and "12v charger."
For the hairdryer, the only way to power it withouit mains hookup probably IS an inverter, but doesn't need to be a particularly "surge-resistant" one.
But as with anything else producing heat, check the drain on your batttery - it won't half give it a caning!