You can buy popcorn or orange peel wall texture in a spray container, but those prepackaged products usually come in limited ...

‘Lightly dampening the walls with a spray bottle of water before scraping the texture away with a wide drywall taping knife ...

You might need a second coat, especially if you’re covering a darker color or painting over heavily textured walls. Consider spraying: If you have access to a paint sprayer and air compressor ...