An air quality sensor is a device used to detect the concentration of pollutants in the air. It can usually measure two or more air quality indicators, such as temperature, humidity, carbon dioxide, carbon monoxide, ozone, formaldehyde, benzene, PM2.5, PM10, etc. It is an important part of the air purifier and fresh air system. Further, the air quality sensor's working principle is to detect gas and particulate matter indicators in the air through optical, electrical, thermal, and other methods.

ATVs used for mobility in the rocky and coastal regions are gaining attraction globally. ATV manufacturers are developing customized vehicles that are utilized in defense and navy applications. They are used for hunting, farming, and carrying small loads in rocky areas.

Cranial orthoses help in treating cranial deformities and abnormalities, such as plagiocephalic, scaphocephalic, and brachycephalic head shapes.

A bidet is a bathroom plumbing fixture shaped as a low oval sinks bowl or vessel designed to be sat upon to wash the genitals, peritoneum, inner buttocks and anus. The modern variety has a water supply pipe and a drain, so it is a plumbing system subject to local hygiene regulations.

Body armor is defined as a layer of protective clothing worn by military personnel. Its main purpose is to absorb or deflect melee or projectile attacks and ensure the safety of the wearer. The proliferation of body armor has increased in modern times, as it is increasingly adopted by security guards, police, and other individuals to minimize traumatic injuries and protect themselves from unforeseen deadly threats. Body armor is personal protective equipment (PPE) for armed forces. This armor provides protection against projectiles, bullets, and fragments.

A centrifugal compressor is a turbo or dynamic compressor with a radial design. It works by increasing the kinetic energy of the gas with a high-speed impeller and converting the kinetic energy into increased pressure in a divergent outlet passage. It is widely used for compressing large volumes of gas to moderate pressures. The main characteristics of a centrifugal compressor are a constant flow of fluids, constant-pressure functioning, and enhanced performance in extreme conditions such as changes in inlet temperatures. It is widely used in automobiles, oil and gas, natural-gas processing, refrigeration, air-conditioning, and heating, ventilation, and air conditioning (HVAC).

Cable conduit systems are protective enclosures used to route and safeguard electrical wiring in residential, commercial, and industrial settings. These systems, made from materials such as metal, plastic, or fiber￾reinforced composites, shield cables from physical damage, moisture, chemical exposure, and electromagnetic interference. They ensure safe and organized electrical installations, supporting compliance with safety regulations and enhancing the longevity and reliability of electrical systems in various environments.

Batteries for smart wearables are energy storage devices specifically designed for use in wearable technology, such as smartwatches, fitness trackers, and augmented reality glasses. These batteries are compact lightweight, and provide a reliable power source to enhance the functionality and performance of smart wearables. They typically employ advanced lithium-ion or lithium-polymer technologies, offering improved energy density, longer operating times, and fast charging capabilities. With their small form factor and efficient power management, these batteries ensure optimal user experience and seamless integration of smart wearables into daily life.

Blood glucose monitoring devices are medical devices used to measure the levels of glucose in the blood of individuals with diabetes or other conditions that affect blood sugar levels. These devices are typically used by individuals to monitor their blood glucose levels on a regular basis, often multiple times per day, to manage their condition and make informed decisions about diet, exercise, and medication.

Automotive fasteners are components used in automobiles and vehicle assembly, which include bolts, screws, nuts, washers, rivets, concrete anchors, inserts, threaded rods, and retaining rings that are used exclusively for automotive manufacturing.