The MicroAIR™ U22 is an ultra-compact nebulizer that fits in the palm of your hand. This convenient, battery-operated nebulizer uses metallic mesh technology which delivers your medication directly without need for dilution. Put it in your pocket or purse for convenient treatments away from home. This durable system will last for up to 1000 treatments. It offers quiet operation and can even be used upside down! Enjoy convenience and effective delivery from this tiny but powerful nebulizer.