Pumping speed is improved at lower pressures. The combination of a backing vacuum pump and a vacuum booster achieves pumping speeds at low pressure much greater than the backing pump could alone.

Freeze drying, also known as lyophilisation, is a common method of preservation used in many products, from the fresh herbs and vegetables that top store-bought pizzas to the instant coffee in our ...

There was a time when vacuum cleaners were largely designed for dry surfaces, but today's models are trying to do much more. The Dreame H12 Dual FlexReach, for instance, can vacuum and mop hard floors ...