By
eHow Home & Garden Editor
Difficulty: Moderately Easy
Step1
Look at the types of white noise machines based on what sounds and features they have.
Step2
Consider a pure white noise machine that masks all sounds. This type is both a market standard and popular.
Step3
Examine machines that filter various volumes of sound. These devices, called pink noise, mask like white noise machines but with a different quality of sound.
Step4
Buy an ambient sound-masking machine that provides calming sounds. Popular listening features include ocean surf, rain, wind and general nature sounds. White noise still masks unwanted sounds while you listen to these other selections.
Step5
Purchase a white noise machine that has volume controls in case you want more or less masking. Mechanical machines have only one consistent volume, while electronic machines offer more control.
Step6
Determine the price you want to pay for your masking machine. Prices vary, so shop around. Midrange prices or higher provide the best solutions for pleasant sleeping.
Step7
Check out options for features you need. Some have portable capabilities with both plug and battery operations. Consider a machine with a timer if you don't want it to run all night.