Earloop fluid-resistant mask helps to reduce potential exposure to blood and body fluids. This flat mask is ideal for general patient-care applications. It is made of non fiberglass materials. It includes mask with anti-fog and anti-reflective face shields for improved wearer protection.

Earphones are a pair of small loudspeakers, or less commonly a single speaker, with a way of holding them close to a user's ears and a means of connecting them to a stereophonic, monophonic or binaural audio-frequency signal source such as an audio amplifier, radio or CD player. In the context of telecommunication, the term headset is used to describe a combination of headphone and microphone used for two-way communication, for example with a telephone.

EBV-NA Test System is designed to detect circulating antibody to EBV-NA and utilizes the anti-complement immunofluorescence (ACIF) procedure.

The ECG amplifier is a device containing various electrical components such as resistors, capacitors, and operational amplifiers. The most complex component of an ECG amplifier is arguably the op amp. An op amp is a solid-state device that has a very high resistance to incoming current. This characteristic is more commonly known as high input impedance. Using a high impedance op amp in an ECG minimizes the perturbation of the subject.