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See Which Oxygen Solution Is Best for You

Compare TTLife portable and home oxygen concentrators by oxygen flow, flow mode, weight, battery life, noise level, and more. With 8 years of experience in breathing care, we make it easier to choose with confidence, backed by reliable warranty support. Still not sure? Click here to take our quick quiz for a personalized recommendation.

Looking for the perfect oxygen concentrator? TTLife offers lightweight, quiet, and durable options for every lifestyle. Whether you’re at home or on the go, our easy comparison guide helps you choose the best fit for your needs. Breathe easier today!

VARON Oxygen Concentrator NT-08G

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Portability

Yes

Continuous/ Pulse

Ultra-sense Pulse

Flow Setting

1 to 8L

Oxygen Concentration

93%±3%

Weight

4.37 lbs

Size (L*W*H)

7.2*3.39*7.83 inches

Noise Level

40 db(A)

Battery Duration

Up to 4 hours

VARON Oxygen Concentrator VP-8 Lite

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Portability

Yes

Continuous/ Pulse

Ultra-sense Pulse

Flow Setting

1 to 7L

Oxygen Concentration

93%±3%

Weight

4.40 lbs

Size (L*W*H)

6.9*3.4*7.7 inches

Noise Level

45 db(A)

Battery Duration

Up to 5 hours

VARON Oxygen Concentrator NT-02

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Portability

Yes

Continuous/ Pulse

Ultra-sense Pulse

Flow Setting

1 to 5L

Oxygen Concentration

93%±3%

Weight

4.85 lbs

Size (L*W*H)

7.2*3.6*10.1 inches

Noise Level

<58db(A)

Battery Duration

Up to 3.5 hours

VARON Oxygen Concentrator NT-01

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Portability

Yes

Continuous/ Pulse

Intellgent Pulse

Flow Setting

1 to 5L

Oxygen Concentration

93%±3%

Weight

6.5 lbs

Size (L*W*H)

7.1*4.9*10.6 inches

Noise Level

<58db(A)

Battery Duration

Up to 3.5 hours

VARON Oxygen Concentrator NT-06

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Portability

Yes

Continuous/ Pulse

Continuous

Flow Setting

1 to 6L

Oxygen Concentration

28%-90±3%

Weight

7.9lbs

Size (L*W*H)

8.7*3.7*9.1 inches

Noise Level

≤45 dB(A)

Battery Duration

Up to 2 hours

VARON Oxygen Concentrator NT-05

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Portability

Yes

Continuous/ Pulse

Continuous

Flow Setting

Fixed 3L

Oxygen Concentration

30%±2.5%

Weight

3.3 lbs

Size (L*W*H)

9.25*3.94*5.55 inches

Noise Level

≤ 52 dB(A)

Battery Duration

Up to 2 hours

VARON Oxygen Concentrator NT-03

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Portability

Yes

Continuous/ Pulse

Pulse

Flow Setting

Fixed 3L

Oxygen Concentration

32.5%±2.5

Weight

3.1 lbs

Size (L*W*H)

9.25*3.94*5.55 inches

Noise Level

≤ 52 dB(A)

Battery Duration

Up to 2.5 hours

VARON Oxygen Concentrator Serene 5

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Portability

No

Continuous

Continuous

Flow Setting

1 to 5L

Oxygen Concentration

93%±3%

Weight

41.8 lbs

Size (L*W*H)

11x13.7x20.1 inches

Noise Level

≤43dB

Battery Duration

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VARON Oxygen Concentrator NT-04

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Portability

No

Continuous

Continuous

Flow Setting

1 to 7L

Oxygen Concentration

28%-90±3%

Weight

10.58 lbs

Size (L*W*H)

8.03*8.43*11.02 inches

Noise Level

≤42dB

Battery Duration

/

VARON Oxygen Concentrator 105W Pro

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Portability

No

Continuous

Continuous

Flow Setting

1 to 8L

Oxygen Concentration

38%-90±3%

Weight

12.13 lbs

Size (L*W*H)

12.01*7.09*11.81 Inches

Noise Level

≤48dB(A)

Battery Duration

/

VARON Oxygen Concentrator 105W

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Portability

No

Continuous

Continuous

Flow Setting

1 to 7L

Oxygen Concentration

30%-90±3%

Weight

12.13 lbs

Size (L*W*H)

12.01*7.09*11.81 Inches

Noise Level

≤48dB(A)

Battery Duration

/

Model

Model Name

Type

Continuous/ Pulse

Flow Setting

Oxygen Concentration

Weight

Size 
(L*W*H)

Noise Level

Battery Duration

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NT-08G

Portable Device

Ultra-sense Pulse

1 to 8L

93%±3%

4.37 lbs

7.2*3.39*7.83 
inches

40 db(A)

Up to 4 hours

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VP-8 Lite

Portable Device

Ultra-sense Pulse

1 to 7L

93%±3%

4.40 lbs

6.9*3.4*7.7 inches

45 db(A)

Up to 5 hours

NT-02.jpg__PID:7c63138d-d514-4eb6-afeb-3a8eb316e792Shop Now

NT-02

Portable Device

Ultra-sense Pulse

1 to 5L

93%±3%

4.85 lbs

7.2*3.6*10.1 inches

<58db(A)

Up to 3.5 hours

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NT-01

Portable Device

Intellgent Pulse

1 to 5L

93%±3%

6.5 lbs

7.1*4.9*10.6 inches

<58db(A)

Up to 3.5 hours

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NT-06

Portable Device

Continuous

1 to 6L

28%-90±3%

7.9 lbs

8.7*3.7*9.1 inches

≤45 dB(A)

Up to 2 hours

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NT-05

Portable Device

Continuous

Fixed 3L

30%±2.5%

3.3 lbs

9.25*3.94*5.55 inches

≤ 52 dB(A)

Up to 2 hours

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NT-03

Portable Device

Pulse

Fixed 3L

32.5%±2.5

3.1 lbs

9.25*3.94*5.55 inches

≤ 52 dB(A)

Up to 2.5 hours

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Serene 5

Home 
Device

Continuous

1 to 5L

93%±3%

41.8 lbs

11*13.7*20.1
inches

≤43dB(A)

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Serene 10

Home Device

Continuous

1 to 10L

90±3%

59 lbs

15.16 × 13.78 × 23.62 inches

≤46dB

/

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Serene 3

Home Device

Continuous

1 to 10L

40%-90±3%

26 lbs

17.7*13.4*9.8 inches

≤48dB

/

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NT-04

Home Device

Continuous

1 to 7L

28%-90±3%

10.58 lbs

8.03*8.43*11 inches

≤42dB

/

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105W Pro Max

Home Device

Continuous

1 to 8L

30%-90±3%

15.40 lbs

12.8*7.9*15.4 Inches

≤45dB(A)

/

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105W Pro

Home Device

Continuous

1 to 8L

38%-90±3%

12.13 lbs

12.01*7.09*
11.81 Inches

≤48dB(A)

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105W

Home Device

Continuous

1 to 7L

30%-90±3%

12.13 lbs

12.01*7.09*
11.81 Inches

≤48dB(A)

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