Saturday, September 6, 2025

Temp Cycle Tests - Mid Sized Chamber Tests

 


Temperature Cycling Chamber 

At QRA International we have several chambers equipped to do Temp Cycle Tests from -40 to +100 C for the purposes of :

> Stress Screening 

> Environmental Simulation Tests

of products ranging from electronics, semiconductor, pharmaceutical, biotech and aerospace for purposes of :

> enhancing reliability

> stimulating infant mortalities in the factory before shipout.

Key Performance Data :

> Change Rate : 2 - 3 C / min from Hot to Cold

> Low Temp : - 20 C 

> High Temp  : + 100 to 150 C

> Dwell Time  : 5 min to 5 hours

Email and write in to either of these :

> General enquiry : qrasales@qra.com.sg

   Specific Enquiry : mark@qra.com.sg 

for a no obligations quote and have a friendly chat with us !


Friday, September 5, 2025

Athletic Chambers from QRA International - Enhancement of Elite Sportsmen Performance.

 

 Laying Out the Insulated Panels at Aspetar Hospital, Doha 


QRA International has a flagship product for the world since 2016. The athletic chamber is the 'secret weapon' for many national sports associations for the purposes of peak performance enhancement of their sprinters, court game players, middle and long distance runners especially in the leadup to a major regional, international or global event. 

Many athletes have been using the  environmental chamber low O2  regimen to condition their bodies to get maximal performance for up to 2 weeks after use. 

Singapore's fine performance of its court, track, sailing, and high jump athletes post COVID is testament to the proper use of these top end equipment, together with a comprehensive coaching regimen, sleep and nutrition schedules which have made us a mini sporting nation.

QRA International has been fortunate to sell, install and commission 4 such chambers worldwide to the top National Sports Associations. They are :

1. Sports Singapore
2. Defence Organization Singapore
3. Aspetar Qatar Hospital
4. University of Canberra Sports Research Institute.

We are but one of 4 major brands worldwide producing such chambers for human and athlete use.

 

Levelling of the Floor at Aspire Doha 


The chamber in a nutshell is just a controlled environmental room. 
The limits of the controlled environment of the chamber is determined by the limits in which our world's environment. However, since there are no ultra marathons in -40 C in Kamchatka or Siberia, there is no need to control the temperature to -40 C. Most chambers which we design reach lows of 0C or -20 C. The control of -20 C means that the panels used for the chamber must be polyurethane filled for proper insulation, else 'sweating' of the exterior walls of the chamber will occur (say inside is -20 and outside is 30C) due to insufficient insulation resulting in condensation - which will be a major electrical shock risk. 

The highest temperature reached is +50 C which can be reached in desert climates like the Sahara and Gobi deserts. 

Temperature Range (Athletic Chamber) : 0  C to +50 C


Putting Up the Panels 

Humidity levels are typically from 20% to 95% (Singapore's humidity is easily 70 - 80% most times of the year). The humidity in the chamber is controlled using steam generation (100%) and a cooling coil to reduce the RH by condensation. Rather overuse of power, but it generates the necessary humidity nonetheless. 

Therefore Relative Humidity : 20 - 95%



For elite athletes and conditioned athletes to train inside the chamber, QRA employs the use of Amine scrubbers which typically 'catch' the CO2 molecules from the air passing through and 'cleaning' the air to be pumped back into the room by this method. Many modern day submarines employ scrubbers to filter out the CO2 and pump back the cleaned air into the cabin of the craft, ensuring that the submarine can stay underwater weeks or months on end.

Human beings emit a lot of CO2 out into the atmosphere and a surprising fact if that many people die in enclosed spaces due to Carbon Dioxide poisoning rather than Oxygen deprivation or too low levels of oxygen when they are trapped in an enclosed space (say a closed mine, or skiers in a crevice). So the enclosed air must be 'scrubbed' clean and recycled back into the enclosed room or chamber. 

CO2 safe levels : less than 2000 parts per million per m3 of air.  



Jobsite 


In summary, QRA INTERNATIONAL can provide the following : 

Walk- In Athletic Chamber for up to 10 people 

Size : 6 m x 6 m x 3 m 

Temperature Range : 0 to 50 C
Temperature Control : +/- 3 C 

Humidity Range          : 20 - 95%
Humidity Control         : +/- 5%

CO2 Control               : less than 2000 ppm per m3 of air inside chamber after 1 hour of intensive use.

O2 Control                 : 20.9 % ppm (seal level) to 8.9% ppm (8000 m)

Solar Intensity          : 400 W / m2 to 1200 W / m2. 

Contact us Now for a detailed Discussion and No obligations Quote 

Email :    mark@qra.com.sg

Website : www.qra.com.sg

Price Range : US$ 200,000 onwards 

Thursday, September 4, 2025

Small Batch Testing Services

 


Small Chamber which can accommodate up to 400 samples depending on sample size. 

QRA International tests any products from Biotech and Pharmaceutical industries for Temperature and Humidity for durations ranging from a few days to up to 5 years continuous testing. 

Temperature Range : - 40 to 150 C. 

Humidity Range          : 20 to 95% rH

If interested, do contact  by email : mark@qra.com.sg 

or visit https://www.qra.com.sg/our-services 

for more information



 

Wednesday, September 3, 2025

80 to 20 Rule - Signal to Noise Ratio.


 

The billionaire Kevin O'Leary once commented that the top billionaires, had easily 80 percent to 20 percent of their day focussed to 

- signal  (80)

- noise (20)

I realised only recently, that this is so true. The top successful folk  focussed 80% or more of their next day to getting and acting on the signal. The must be done items, no matter how unpalatable those must be done items can and must be.

The 20% noise is their down time, their other side of their life, relationships and niceties.

Its so true, and if practiced well, the plan normally moves and in many cases, it moves fast.



School of Life - Things to do

There are 5  values I have learnt from the School of Life which separates the winners and the 'also rans' in life. Let me list them down broadly. Having the Vision and Grand Plan for my business or myself is easy.  Pursuing it and doing the day to day steps to achieve the Grand Plan is always the toughest part.

1. Discipline

2. Focus on my tasks 

(a) Grand plan laid out - refer to it

(b) day to day

(c) mid term

3. Resilience, Grit, Physical and Mental Pain Management

4. Doing what Must be Done even if I hate the task

5.  Rest when necessary.

Reflect on these 5 Values for a while. 




A working lunch in the Office yesterday

Sunday, August 31, 2025

A quote to reflect this Sunday 31st Aug 2025


"The ultimate test of the value of a political system is whether it helps the society to establish conditions which improves the standard of living for the majority of its people, plus enabling the maximum of personal freedoms compatible with the freedoms of others in society" 

This is attributed to the late Mr. Lee Kwan Yew, founding Prime Minister of Singapore.  

The present day Singapore is a testament to the party he co-founded way back in the late 1950s and that party is credited for the successful development from a sleepy port and trading centre to a gleaming metropolis today, attracting the best and brightest the world over to invest and participate in industries such as banking, advanced manufacturing, aerospace, clean energy, supply chains, pharmaceutical the list goes on. Singapore has one of the highest GDP per capita (US$ 94,500 per citizen) and is admired worldwide for its proactive and efficient Government, there is lots of greenery in this garden city, and there is world class airport, public transport and internet connectivity. The port of Singapore is the world's second busiest and our Universities are ranked within the top 10 in worldwide (in terms of papers presented). 

It however, has strict laws from everything from littering, taking drugs (even when overseas),and recently vaping. The feeling that the city is rather boring prevails, because the nightlife is not as vibrant as New York or London or even Hong Kong. It is one of the biggest two challenges facing Singapore as a 'global city', that and the rise of AI in industry disrupting many young people's lives - it is very difficult to snare an entry level job - let alone keep that job for long term.  

Yes, there are sacrifices made. Yes, the going was uncomfortable at the beginning and over the past decades. There is a new world order with many uncertain threats and tariffs, making the region more unstable.

We need to bond together, huddle together, support each other and strategise. Together, with all the steady collective minds and a firm belief that with adversity, the opportunities and cohesiveness of the people will show and we can overcome what ever comes.

Like the Romans 2 millenia ago, when the enemy attacks, form a circle, or a rectangle, put up the shield and hold firm. 



                              Photo courtesy of Nick Carrey 

         By Neil Carey https://www.flickr.com/photos/ncarey/ -                      

           https://www.flickr.com/photos/ncarey/144042243/, CC BY-SA 2.0,   

       https://commons.wikimedia.org/w/index.php?curid=2428371

                We will pull through even the toughest crises.  


 




Saturday, August 30, 2025

Hypoxic Chambers used in National Athletic Research Institutes - Your Questions Answered Here

 


Hypoxic Chamber Supplied by QRA to Sport Singapore in 2016 

Consumer-friendly and professional hypoxic chambers are now a normal part of endurance development and team sport conditioning. Recently, the fitness industry has become a customer of hypoxic chambers, as the rapid adaptations that altitude simulators provide is commercially appealing.

In this buyer’s guide, we review the details of investing in altitude chambers and cover the necessary terminology, science, and practical considerations so coaches and high performance staff will have the necessary information to get started. The benefits are simple: improved aerobic capacity from specific hematological adaptations that improve athlete stamina. Most of the research supports what we can do with altitude tents and indoor hypoxic chambers, but the magnitude is still unknown when addressing their real-world impact on athlete careers versus short studies. The final word on how to use the technology will be up to the sport scientists and coaches, but for now the use of altitude tents has merit.

What Is a Hypoxic Chamber?



Athletic Chamber in Aspire Hospital Doha Qatar
Proudly Supplied by QRA International in 2017 


A hypoxic chamber is an area of any size that simulates altitude conditions, and applications range from specialized training rooms to bed tents that allow athletes to sleep with the physiological conditions found at higher elevations. Don’t confuse hypoxic chambers with hyperbaric chambers, or systems that increase the oxygen content of the local environment. Hypoxic conditions are researched to help intensify the adaptation process, but the effects relate highly to the entire training program and lifestyle of the athlete. While the systems are mainly for enhancing athlete performance, some treatments are for non-athlete use, such as wellness centres and rehabilitation clinics.

Don’t confuse hypoxic chambers with hyperbaric chambers.CLICK TO TWEET

There are three categories of equipment currently available: small sleep space areas, direct breathing devices, and training room solutions. All three systems can help an array of athletes, ranging from elite endurance athletes to senior populations. The popularity of hypoxic chambers is growing in Europe, and they are now available in the U.S. for fitness and performance demands. Hypoxic chambers are not like gas analyzers or commercial restricted breathing masks, as oxygen utilization and restricted breathing are not true hypoxic technologies.

Single user breathing devices are systems that replicate altitude by directly connecting the individual athlete to an inhalation stimulus similar to elevation. The athlete can sleep or train with the system, and the surrounding area maintains normal conditions. Like a CPAP machine, but clearly designed to stress the athlete incrementally instead of restore breathing, the technology is safe and effective.

Sleeping areas are commercially available, and due to their size and the user experience, they are popular with recreational athletes and team sports. Because of the invasiveness to sleep, specifically the social barriers, the market isn’t close to saturation in the space. Hypoxic sleeping devices resemble tents, and are often referred to as altitude tents to convey the concept of the appearance and function of the solution. Some systems are reportedly uncomfortable to sleep in because the temperature can be slightly warmer than ideal conditions, so decreasing the bedroom’s temperature is the common adjustment.

Training zones require specialized construction of the room to ensure the space is literally airtight. Sizes range from small single training areas that athletes can cycle in individually all the way to team-sized environments. In addition to an airtight area with unique entryways, altitude generators are required to alter the internal environment and replicate elevation. Training areas with hypoxic technology are very popular with athletes in team sport. While most in team sports are not interested in sleeping high artificially, all athletes use the training chambers.

How Does a Hypoxic Chamber Work?

Inside the Sport SG Chamber 

Control 
Temperature : 0 to 50 C
Humidity : 20 - 95%
Altitude : 0 - 5000 m
CO2 Control : 400 ppm for 2 hours with 4 athletes

A hypoxic chamber is an artificial environment solution that senses the ambient conditions of the local area and has the ability to distort the oxygen profile, thus simulating altitude. The equipment makes calculations that increase or decrease the simulation with a high level of accuracy. In summary, a hypoxic chamber fools the body into believing the athlete is at elevation.

Similar to an air compressor, the generators are about the size of a washer and dryer, and sometimes larger than full-size refrigerators depending on the amount of air treated. Due to the electrical energy required to modify large spaces, the temperature of the generators used to be an issue in confined spaces. It’s important that coaches and others involved recognize that air flow is purposely restricted in hypoxic chambers, so air conditioning and air filtering is sometimes a challenge.

In summary, a hypoxic chamber fools the body into believing the athlete is at elevation.CLICK TO TWEET

Small systems use similar technology, but tents and other small-space solutions are not as powerful because they use fewer cubic litres than full room chambers for teams and large groups. Mask solutions are similar, meaning they utilize the same engineering but on a far smaller scale. Partial pressure of tents and other systems is not modified by technology, therefore the main difference with air at sea level is its nitrogen and oxygen ratio.

What Does the Science Say About Hypoxic Training ?

The physiology of simulated altitude is important because athletes who artificially live high but train at sea level improve their tolerance and adaptations, but do not fully prepare for the rigors of altitude. Conversely, those who train in hypoxic conditions with short intervals also limit their exposure to altitude, as it requires a combination of living and training to fully capture the absolute benefits of elevation to the body. Team training is also usually limited to cross-training or non-specific conditioning, so the transfer and replication of game conditions are not interchangeable. The amount of general training that transfers at sea level is conflicting, but added conditioning at altitude or simulated altitude does have a stronger influence on adaptations specific to aerobic performance.

Nearly all of the improvements in aerobic capacity will come from the mitochondrial, hematological, and cardiopulmonary adaptations. Concurrent training methods that incorporate both power and endurance should be enough to preserve an athlete’s ability to produce power, and extend the aerobic capacity to repeat it and conserve those capabilities. The rate of decay—meaning how quickly the adaptations occur—is highly dependent on a myriad of factors, mainly training, genetics, diet, and recovery.

Genetic factors are a real component in the success of athletes, as some athletes don’t seem equipped to harness the simulated altitude. Conversely, some athletes are high responders due to their genetic profile. Other circumstances make hypoxic training invaluable, such as immobile athletes after surgery or illness. Based on the research, it’s not clear who makes an ideal candidate for altitude training, so determining the athletes who are best fit to use altitude simulation with hypoxic rooms and tents is a difficult process.

Standard Features and User Experience



Sports SG Chamber can fit in :
a) 4 Olympic Sized Treadmills
b) 2 Cycling Machines

Most, if not all, of the systems available have a limited warranty (up to 24 months) for conventional use. Some chamber systems have maintenance packages or agreements that minimize expenses, and nearly all of them have been tested for safety and effectiveness. Many of the features are universal, meaning the market is not dramatically different, just similar enough that comparisons are not necessary outside of basic information on offerings and prices.

We don’t intend to oversimplify, but hypoxic chambers are very similar to air conditioning units, as they display simple environmental data and provide a solution to change the conditions accordingly. As for the private or individual products, each system has ergonomics and design differences that are small but reliable for purchasing, such as workflow and simplicity. Unlike equipment in our other buyer’s guides, individual key features are not the primary selling point.

What Options Exist with Hypoxic Technology (Rooms, Tents, Face Masks)?

There are a handful of players in the space and most of the companies support all of the markets, ranging from serious weekend warrior to professional institutions. We list the five companies that lead the industry for hypoxic chambers, tents, and individual systems. While the choice of options is narrow, each company’s experience should give you confidence that they’ll still be around in a few years, despite the fact that the sports technology market can be so volatile.

Worldwide Suppliers 

1. Hypoxico (USA)

2. Sporting Edge (UK)

3. QRA International (Singapore)

4. Higher Peak (UK).


QRA International Pte Ltd

www.qra.com.sg

Email :qrasales@qra.com.sg

           mark@qra.com.sh

Tel     : (65) 6795 1486

21 Toh Guan Road East

#04 - 02 Toh Guan Centre

Singapore 608609

Supplying world class Hypoxic Environmental Chambers to the World 

'If' by Rudyard Kipling

Good Times with Great Mates  Roland Teo ('V' sign) and Tom Gan   If - Rudyard Kipling  If you can keep your head when all about you...