The Oransi v-hepa Max has everything you need to effectively clean a bedroom or a larger living area. Whether you are looking for relief from allergies, need help with dust, asthma or just want cleaner, fresher air the Max is a top rated air purifier. You get high-end air purifier performance and a shrewd buy that provides clean air. So simple to use it doesnt require the manual or tools, is low cost to operate and up to 2-3 times quieter compared to competitive air purifiers. For every 10dB of sound the noise level doubles so the Max at 34dB to 53dB of sound is much quieter than competitor HEPA units at 60dB-70dB with competitive. The Max produces a little white noise to help you sleep comfortably.