After each use, clean nebulizer attachments like masks, mouthpieces, tubing, and medicine cups in warm, soapy water or on the top rack of your dishwasher. Do not submerge the tubing in water ...

There's tubing required for any nebulizer treatment. It doesn't matter which end attaches here. This is the functional piece—this is the nebulizer. The nebulizer has two pieces. This might look ...