BRAND INTRODUCTION
RESPIREASYOxygen Concentrator is designed and manufactured by Shenzhen Jiaxing Technology Innovation Co., Ltd.
RESPIREASY, developed by Shenzhen Jiaxing Technology Innovation Co., Ltd., has specialized in oxygen concentrators for over 15 years. We provide 1–60 LPM portable, home, and medical-grade devices with original accessories, serving 400,000+ users in 60+ countries.
Germany R&D Based & Shenzhen Factory
Backed by German respiratory experts in Germany R&D Based, we hold 100+ patents and focus on PSA efficiency, AI adaptive flow, and IoT monitoring. Our ISO 13485-certified Shenzhen factory (CE/ISO/NMPA) has a 2M annual capacity, with strict 7-step testing ensuring 93% purity and <0.5% failure rate in 2 years.
RESPIREASY delivers reliable, affordable, and smart oxygen therapy solutions for home, travel, and clinical care.
--RESPIREASY, easy respiratory care, smart oxygen therapy solutions

CONTENTS
Safety Precautions---------------------------------------------2
Product Features-----------------------------------------------3
Key Technical Indexes------------------------------------------4
Operating Instructions-----------------------------------------5
Cleaning, Care and Maintenance------------------------------10
Troubleshooting------------------------------------------------13
Working Principle----------------------------------------------15
1
Safety precautions
WARNING : This device is not medical instrument NOT INTENDED to be life sustaining or life supporting.
Pre-Installation
● Upside down operation prohibited.
● If the power supply has unstable voltage, or is beyond AC220±22(110±10)volt, please connect the voltage regulator before using the machine.
● Please use standard socket with safety qualification and terminal board with electrical safety certification.
● Don’t open the case non professionals.
Laying Place
● The machine should be located in a well-ventilated space and avoid direct sunlight. The distance between the machine and the wall or other objects should be no less than 10cm.
● Do not put other things or liquid vessel on the machine.
● Stacking sundries is prohibited on the back and bottom vent of the machine, to prevent shutdown or decrease in oxygen concentration due to high temperature cause by blocked exhaust.
Using
● WARNING: Oxygen is a combustion-supporting gas, so do not smoke and keep away from combustion source while using the machine for fear of fire accident.
● Do not switch on & off frequently. You can restart it after you have switched it off for 3-5 minutes, considering its service life.
● Avoid oil or grease-like material for any part of the machine. So as not to pollute the oxygen machine and cause fire.
2
Feature of RESPIREASY-dedakj Home Oxygen Concentrator
Overview
The scope of product application: The DEDAKJ 1LW Oxygen Concentrator is designed in accordance with standard of Home usage appliances, It supplies a high concentration of oxygen.
Operating principle
This product uses AC220V/110V as power source, air as raw material and adopts the pure oil-free air compressor and qualified molecular sieve imported with original packaging, so as to generate high purity oxygen by PSA at normal temperate and supply oxygen.
Function Feature
● Intelligent Control: LED display, timing function, easy to use and simple to operate.
● Overheating protection: The pure oil-free air compressor with overheat protector, will stop working automatically when the compressor's working temperature is too high to protect the compressor and the whole part of the product.
Accessory List
Oxygen concentrator
Remote control
Power cord
User Manual
Warranty card ( attached at the end of the manual)
Certificate of conformity (attached to the end of the manual)
Quick start manual
3
Key Technical Indexes
● Product Name: Home Oxygen concentrator
● Model: DE-1LW
● Oxygen Generation Method: PSA
● Rated Power: 120VA
● Rated Voltage: AC220±22V 50 ± 1Hz/AC110±10V 60Hz
● Oxygen Concentration: 30% -90%
● Oxygen Flow Rate: 1-7L / min adjustable
● Oxygen Pressure: 0.03-0.06MPa
● Carbon Dioxide: Pass the test according to the prescribed method
● Carbon Monoxide: Pass the test according to the prescribed method
● PH: Pass the test according to the prescribed method
● Morphological Identification: Colorless gas, odorless and tasteless, combustion-support
● Operating Noise: ≤ 45dB (A)
● Dimension: 340 x 180 x310mm
● Net Weight: 6.0kg
● Classification: Class II
● Display Control: LED light display, intelligent chip control, infrared remote control
● Safe Working Conditions:
Environmental Temperature : 5℃-40℃
Relative Humidity: ≤ 80
Atmospheric Pressure: 86kpa-106kpa
● When the temperature is lower than 5℃, the device should be placed at normal working environmental temperature for more than four hours before use.
4
Operating Instructions
Inspection
Check the appearance of the device and accessory list before use, check the quantity as if consistent with the manual. Please contact with the distributor or manufacture soon as if any defective.
Appearance schematic diagram
5
Grip the top handle of the humidification water
tank by hand, pull out the water tank after
pressing.
Filling the Humidifier Water Tank
Open silica gel plug at top and fill pure water to the
highest water level line.
(Cool boiled water, distilled water and so on) *Do not
exceed water level line.
Make sure to cover the rubber plug before using, align
the positioning groove at the bottom of water tank and
then the outlet, put the humidification water tank back
to the main body.
Air Filter Inspection
Before switching the device ,Please check if the air filter is in place and keep it clean.
Connect Power Cord
Plug the output power cable into power supply sock of the oxygen,and plug the other end of the power cord into the main socket.
6
Connect Oxygen Tube
Connect Oxygen Tube
Connect the large-diameter end of “oxygen tube” with “oxygen outlet mouth”and connect the other end with oxygen inhaler. If there are too many drops of water in the water trap during or after oxygen inhalation, open the water trap and pour it clean.
Inhaler Wearing
Wear oxygen inhaler as shown in the picture. When using the earhook
inhaler, adjust the position of the oxygen outlet and point it at the nostril. If
using the inhaler nasal, just align the two outlets with the nostril and
tighten the rubber ring.
Nebulizer Function Using Method( Liquid Medicine from the Doctor)
1. Before using the atomization function, please knob the nuts of atomiza-tion. port and place the nut in the hand-held groove position.
2. Connect the atomization port to the bottom of the atomization cup through.
catheter, the atomizing cup can be poured into liquid medicine or diluted liquid medicine as needed.( The maximum capacity of atomization cup is 8ml. Do not exceed the maximum scale), wear a mask or mouth contain-ing type as required.
7
3. Then press the oxygen button of the machine, transfer to 2L stall oxygen. state, Change the oxygen generator function into atomization function
4. After atomization, the liquid is injected into the human respiratory tract through the atomization device.
5. After do atomization for approximately 30-35 minutes, then finished atomization, press the oxygen key to shut down, removed the atomization device, and clean the atomization cup, after dried and put it in a cool dry pla.
6. Finally, re-twist the nut back to the atomization port, and tighten.
Starting Oxygen Concentrator
Turn on the power switch, press the oxygen key, the machine starts to make oxygen, adjust the flow meter, and then you can inhale oxygen (please see the operation instructions on the panel or remote control for details).
DE-1LW LED Screen Display Instruction
1. Negative ion display
2. Preset time
3. Oxygen flow rate
4. Oxygen concentration
5. Cumulative time
6. Cooling fan
7. Sleep display
8. Fault alarm display: compressor, speed motor cooling fan
8
Oxygen Key
Press “oxygen key”, display is fully lit ,and machine is in oxygen and negative ion working condition,while the water tank light show blue.
At same time, the screen displays preset time and accumulated time.
Under working state, press the "oxygen key" to enter the standby state, and the
fan will be turned off after a delay of 3 minutes.
Flow Regulation
Adjust the flow rate by pressing “flow regulation key”.
Customer can control the oxygen flow rate according to their need.
There are 1-7 stall points, it’s corresponding to l-7L / min flow, oxygen flow increases and
oxygen concentration decreases.
Switch on in power off condition, the default flow value is 1L ,restart on standby.
The value of the flow file will retain the setting of the flow file when the device is turned off.
Timing Plus, timing minus key
Press“timing +” key to increase the timing each 15 minutes by one-way cycle setting, maximum setting is 180 minutes. After 3 seconds of inactivi-ty, the timing will start to count down until the timing automatically shuts down.When press "timing -" key, the time will be setting decreased as each 15 minutes from total 180 minutes.
Note: When operate functional key, it will be different at the statue of display“ 000”
1.In the highlighted state, press functional key will directly reflect operat
ing result.
2.In the power saving state, press functional key once to activate highlight
mode , press it again , then it will reflect operating result.
Press any key each time , the buzzer sound once. It will be in power saving mode after 1 minute without operation.
9
Sleep Display
Press “sleep ” key while in working , the display switches to sleep mode after the sleep display symbol flashing 3 times. After pressing any key or touch any function key on the panel , display waked up again.
Accumulation function
This machine is designed with accumulated time function. Record the usage time every 20 minutes. After one hour, the display will increase by one hour.
Automatic fault detection function
If cooling fan fails during use, the display will show a red fan icon, accompanied by a buzzer alarm and the machine will stop working.
For other function, please refer to Quick Start Manual
DE-1LW Remote control instrument
1. ON/OFF Oxygen
2. Stall Key
3. Timing Plus Key
4. Timing Minus Key
5. Negative ion display
6. Sleep display
Cleaning, Care and Maintenance
Cleaning housing unit
The surface of the housing should be cleaning at least once every month.
Disconnect the power cord before you clean it. Wipe it with a clean, mild, damp cloth soaked with disinfectant.Do not let the liquid penetrate into the machine.
10
Cleaning water tank
To keep the water tank clean, the water used should be pure water, distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic plug back to avoid leakage of oxygen from the water inlet, caused no oxygen output from oxygen outlet mouth when the machine is in normal working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate dust and purify the air. It should be cleaned around every ten days.
First use mild detergent to wash, and then rinse it with clean water.
Pay special attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5 minutes, cleaning with water, or wiped with alcohol. Oxygen tube as consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a slotted screwdriver to pry off the fuse holder cap, take out the defective glass fuse tube ,replace new one, put the cap back and tighten it.
11
Long-term Deposits
If oxygen concentrator is in unfrequency of use, please do these:
● Take out humidified water tank, pour water out,and put it back in place
● Cut off power supply, collect power cord.
● Keep oxygen concentrator storage in a normal temperature and dry place without directly sunlight and pollution.
Please do as following if reuse the the oxygen concentrator
● Check if the electric is damaged.
● Check if the oxygen tube is disconnnected.
● Cleaning humidifier water tank.
12
| NO. |
Phenomenon |
Cause analysis |
Solution |
| 1 |
Odor in air. |
In the initial stage of using, there is smell for the connection tube and other plastic parts. It is normal. |
The odor that comes from silicone tube and ABS rubber parts is normal and non-toxic byinspection.The odor will disappear as time goes by.
|
| The humidifier water tank hasn't been cleaned for a long time or the water hasn't been changed. |
Cle an the oxygen tube and humidifier water tank. |
| 2 |
Water flows from the oxygen outlet.
|
The water level of the humidifier water tank is beyond the highest water level, so the airflow pressed the bubble into the oxygen tube. |
Keep the water lower than the highest water level. |
| The machine has been used for a long time, so that the steam in the airflow gathers on the tube wall. |
pour the water in water tank. And add water into the water tank when there is no water coming out from oxyhen outlet. |
| 3 |
The machine lelse "puff" sound every several seconds |
lt is the sound of nitrogen discharging which is normal and is asign of fine working. |
|
| 4 |
After startup, the machine operates well, the flowmeter displays "0" or is too small |
The flowmeter is off or the value is too small |
Turn up the oxygen flow. |
| The oxygen tube is twisted or blocked. |
Straighten the oxygen tube. |
The inner connection tube of the machine is disconnected or broken. |
Disconnect the powercord and contact professionals to repair it. |
| 5 |
After startup, there is bubble in the water tank,butthere is no oxygen getting out from the oxygen outlet. |
The silica gel stopper of the humidifying water tank is not properly positioned. |
Remove the humidifying water tank to plug the silica gel stopper. |
13
| NO. |
Phenomenon |
Cause analysis |
Solution |
| 6 |
After startup, the in dicator light works, but the machine does not(the sound is irregular). |
Compressor malfunction |
Disconnect the power cord and contact professionals to repair it. |
The temperature is so high that the self protection mode of the oilfree compressor is activated. |
lt is a normal case.When the temperature lowers down, the machine will restart automati cally. |
| Separation valve mulfunction |
Disconnect the power cord and contact professionals to repair it. |
The inner conection tube of the machine is disconnected or broken. |
Disconnect the power cord and contact professionals to repair it. |
If it still does not work as you have followed the solutions listed above, do not disassemble the machine. Please consult the manufacturer for assistance.
14
Working Principle
The air comes into the compressor after compressed by air inlet filter unit, and then it enters into molecular sieve tower to separate the oxygen and nitrogen.The oxygen successfully goes through the molecular sieve tower into the fine sieve tower.In contrast, the nitrogen is absorbed by the molecular, then to be discharged into the atmosphere through the sepa-rating valve. The oxygen concentration is enhanced in the fine sieve tower and controlled flow size by flowmeter.Then the oxygen is humidified by the humidifying water tank when it comes to it. Finally , the oxygen reached the user through oxygen supply tube.