It means he thinks you are lovely. that's a beautiful compliment, but it doesnt necessarily have to mean more than that. It means he secretly likes you and doesn't have the courage to tell you that he likes you to your face. could just be flirting to see what you're reaction would be like.
Medical air is also used during anesthesia as a substitute for nitrous oxide to reduce the high concentration of oxygen exposure. While the source of medical air may be a manifold with a bank of compressed air cylinders, most hospitals use a compressor system. This article will refer to installations with air compressors. An illustration of a typical medical air plant is provided for your reference throughout this article's discussion.
What is a hydrofluoroalkane inhaler with a spacer? Inhaled asthma medications are often delivered by using a device called an hydrofluoroalkane inhaler or HFA. The HFA used to be called a metered dose inhaler or MDI. The inhaler is a small aerosol canister in a plastic holder that delivers a puff of medication to the lungs. To help make it easier for your child to use the HFA and ensure the medication gets into the lungs, your child may use a spacer chamber (with or without a mask) with the inhaler.