Simple face mask is a common oxygen-delivery interface used in hospitals and clinics to provide supplemental oxygen to a spontaneously breathing patient. It is a basic piece of hospital equipment seen across emergency departments (EDs), wards, operating rooms (ORs), post-anesthesia care units (PACUs), ambulances, and resource-limited settings that rely on oxygen cylinders or concentrators.

Nasal cannula is a common oxygen-delivery interface used to provide supplemental oxygen to a spontaneously breathing patient through two small prongs placed in the nostrils. It is simple hospital equipment, but it sits at the center of everyday respiratory care: from emergency departments and operating recovery areas to inpatient wards, ambulances, and home-care pathways.

Oxygen humidifier bottle is a common accessory used in oxygen therapy to add moisture (humidity) to oxygen before it reaches the patient. In many hospitals and clinics, oxygen delivered from cylinders, wall outlets, or oxygen concentrators is relatively dry; over time, that dryness can contribute to discomfort and airway irritation for some patients. A simple humidification bottle can improve tolerance of oxygen therapy in selected situations, but it also introduces operational and safety considerations—especially around infection prevention, compatibility, and maintenance.

A **Wall oxygen regulator** is a common piece of hospital equipment used to deliver oxygen from a facility’s **central medical gas pipeline** (the “wall outlet”) to a patient interface such as a nasal cannula or oxygen mask. In many hospitals it is one of the most frequently touched oxygen-related clinical devices on wards, in emergency departments, procedural areas, and recovery rooms.

An **Oxygen concentrator** is a medical device that takes in ambient air and delivers **oxygen-enriched gas** for patients who need supplemental oxygen. Unlike a cylinder, it does not “store” oxygen; it **concentrates** oxygen from room air using internal filters and adsorption technology, then provides a controlled output through standard oxygen tubing and patient interfaces.

A Point of care blood gas analyzer is a bedside (or near-patient) clinical device used to measure blood gas and related critical-care parameters from a small whole-blood sample. In practice, it helps teams rapidly assess oxygenation, ventilation, and acid–base status—often when minutes matter and decisions must be made before a central laboratory result would realistically return.

A **Point of care HbA1c analyzer** is a near-patient **in vitro diagnostic (IVD)** medical device used to measure **hemoglobin A1c (HbA1c)** from whole blood, often producing a result in minutes (varies by manufacturer). HbA1c is a laboratory marker commonly used in diabetes care because it generally reflects average blood glucose exposure over the preceding weeks to months, rather than a single moment-in-time glucose value.

Ketone meter is a point-of-care (POC) medical device used to measure ketones in a patient sample—most commonly **blood beta-hydroxybutyrate** (a major circulating ketone body). Ketone measurement is clinically relevant because elevated ketones can signal metabolic stress states such as **ketosis** and, in some contexts, **ketoacidosis**, where timely recognition and escalation are important.

A **Glucometer** is a point-of-care medical device used to measure **blood glucose** (blood sugar) from a small blood sample—most commonly a capillary fingerstick. In hospitals and clinics, this medical equipment supports timely assessment of glycemic status in patients with known diabetes as well as patients with acute illness where glucose monitoring may be part of routine care.

An **Ankle brachial index device** is a non-invasive **medical device** used to measure the *ankle–brachial index (ABI)*—a comparison of blood pressure at the ankle versus the arm. The ABI is widely used to support the assessment of **peripheral artery disease (PAD)** and overall vascular status, particularly in patients with leg symptoms, diabetes, kidney disease, smoking history, or non-healing lower-extremity wounds.