MS-05BK / MS-05BR
  • BlackBlack
  • BrownBrown

Recommended for the following people!

  • living on the floor
  • intrested in zaisu chair
    or time to replace old one
  • Suffering from stiffness in the neck, back and lumber area

We were extremely particular about the comfort of a zaisu chair

Adaptable to any posture with a reclining back and adjustable headrest

For sitting up
For leaning back

Fit and relax

The reclining angle is adjustable in 2 locations, adaptable to any posture.
The headrest can be tilted backward for a high back,
or tilted forward for firm neck support.
Simply operate the lever on the side for smooth reclining.
※The headrest is tilted manually.
With a cushioning sheet
Without a cushioning sheet

A new concept for zaisu-style seats by DOCTORAIR

The pursuit of comfort for zaisu chair and advancements in massage seats.
A totally new form of massage seat without compromise

VOICE Message from the development supervisor

We’ve focused on improving the comfort of zaisu-style seats.

We were very particular about the comfort of zaisu chair.

While we continue to pursue comfort for zaisu chair with a design that adapts to your posture while sitting and a cushioning sheet that can be placed over the backrest, we’ve also significantly improved the massage functionality by incorporating separate sets of massage balls for the neck and the shoulders.

I’m confident that the kneading functionality of our 3D MASSAGE SEAT ZAISU has elevated it to the next level.*

I would like to many people to try and enjoy how good it is.

※Compared to the DOCTORAIR massage seat series

“We’ve focused on massage functionality,
as well as on comfort.”

Equipped with comparable to full-scale massage chair features,
it is compact, yet powerful and comfortable.

Fulfilling massage experience
with the heater function
Massage ball lit in red when heater is ON
Warmly glowing massage balls provide a greater sense of warmth.
  • Lit in RED Heat ON … Massage balls lit in RED
  • Lit in BLUE Heat OFF … Massage balls lit in BLUE

The pursuit of massage

The neck part is equipped with new massage balls.* We paid particular attention to materials and kneading motions with the aim of reproducing the shiatsu pressing motion.
※Compared to the DOCTORAIR 3D massage seat series

Survey result of "seating comfort" How did you like seating comfort? (n=469)
          Over 96% of people said "Seating comfort is good" in the survey.

VOICE Message from our medical partner

Sitting in a distorted posture for a long period of time puts strain on the pelvis leading to lumbar fatigue and leg numbness. Additionally, people who sit without using the backrest often have a tight back and shoulders.
In order to avoid such problems, it’s ideal to distribute your weight evenly on both sides with proper posture and to reduce stress by using the backrest.
The 3D MASSAGE SEAT ZAISU supports the lumbar area by hugging it on both sides so that you can relax while seated. Furthermore, it provides a comfortable shiatsu massage while in that state.
It’s a great way to refresh yourself after a long day at home or in the office.
I would like to many people to experience this!

Takashi Uemura DC, ICCSP (Internationally Certified Chiropractic Sports Physician)
United States Certified Doctor of Chiropractic


Product name
Model No.
Black: MS-05 BK
Brown: MS-05 BR
JAN code
Black (MS-05 BK): 4580657300273
Brown (MS-05 BR): 4580235555859
Suggested retail price
¥43,800 (tax included)
Of which consumption tax ¥3,981 (10%)
General name
Household electric massager
Medical device type
Controlled medical device
Medical device certification number
Power supply
AC100V 50Hz/60Hz
Power consumption
10.5W (without load)
Rated power consumption
Approx. 34.4W
Approx. 10 min.
W 510 × H 820 × D 760 mm (with backrest upright)
to W 510 × H 490 × D 1,130 mm (with backrest lowered)
Approx. 11.6 kg (main unit only; backrest: approx. 7.6 kg, seat: approx. 4 kg)
Steel, ABS, POM, urethane, PU
Cushioning sheet, AC adapter, power cord, stopper (attached to main unit), instruction manual (with warranty)
Load capacity
Approx. 100 kg
Heating temperature
Up to 53°C (calculated according to an ambient temperature of 25°C)
Surface temperature when using heater
Back: approx. 38.5°C
Headrest: approx. 37°C
Operating environment temperature and humidity
+10°C to +40°C, 30 to 85% RH
Storage environment temperature and humidity
0°C to +40°C, 10 to 85% RH
Kneading speed
Back: 36 (±5) times / min.
Headrest: 21 (±5) times / min.
Massage speed
Approx. 1.1 cm (±0.2 cm) / sec.
Reclining angle
Back: approx. 80 – 150°
Headrest: approx. 95 – 170°
Power cord length
Adapter: 1.9 m
Cord: 1.5 m
Actual color of the product may differ depending on your device or computer setup.
Product specs and design are subject to change without notice for the purpose of improving performance and functionality.

¥43,800 (tax included)
Of which consumption tax ¥3,981(10%)