Oxygen Concentrator
An oxygen concentrator is a device utilized for oxygen therapy, delivering
oxygen to a patient at levels ranging from minimally to significantly higher
concentrations than what's typically found in the surrounding air. They
serve as a safer, more cost-effective, and convenient alternative to
compressed oxygen tanks, with common models priced around RM2500. Leasing
options may be offered by various medical supply companies and insurance
agencies.
Additionally, oxygen concentrators are employed as an economical oxygen
source in industrial processes. They operate using two cylinders filled with
zeolite materials, which selectively adsorb nitrogen from the air. During
each cycle, one cylinder pressurizes the air at approximately 20 pounds per
square inch (absolute), allowing zeolite to capture nitrogen molecules,
while the other cylinder releases the captured nitrogen at atmospheric
pressure.
It's important to note that the following information pertains to stationary
oxygen concentrators, not the newer portable versions. Older models operate
on a cycle of roughly 20 seconds, providing a continuous oxygen supply at
flow rates of five liters or less per minute, with selectable oxygen
concentrations ranging from about 25 percent to 95 percent. This process,
known as pressure swing adsorption (PSA), has been in use since around 1999,
with concentrators capable of delivering up to 10 liters per minute for
patients requiring higher oxygen flows. Despite the increased capacity,
these devices remain relatively compact and lightweight.
In both clinical and emergency scenarios, oxygen concentrators offer a safer
alternative to oxygen cylinders, which can exacerbate fire hazards if
ruptured or leaking. This makes concentrators particularly valuable in
military or disaster situations where oxygen tanks may pose risks.
Oxygen concentrators are deemed reliable enough to be leased to individual
patients for home use, often as a complement to CPAP treatment for severe
sleep apnea. They also find application in treating conditions like
emphysema and other respiratory diseases.
When purchasing used or refurbished units, it's essential to buy from
reputable dealers. Units that are unreliable pose risks to patients' health,
but they may still hold value for hobbyists involved in metal or glasswork.
Given the expense of bottled oxygen, medical or specialized industrial
concentrators can be adapted for use with small oxyacetylene cutting and
welding torches.
undo Medical Equipment