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  • Dust Mask DR77R
  • Dust Mask DR77R
  • Dust Mask DR77R
  • Dust Mask DR77R

Dust Mask DR77R DR77R

3.78 (18)
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Item Feature
Against Bird Flu
Filter Material Type
Intake Resistance Rise Value (Pa)
(Actual average): 270 or less
National Certification Acceptance Number
Inhalation Resistance (Pa)
(Measured average value): 70 or less
(Filter medium) R1
Material (surface body)
Exhaust Resistance (Pa)
(Measured average value): 70 or less
Material (welding face)
Styrene elastomer
Particle Collection Efficiency (%)
(Measured average value): 82 or more
Case-less one-touch connection double cushion
Facepiece Dimension (Width x Length)(mm)
Weight (g)
(Weighing in M ​​/ E) 120 following: (actual average value)
Customer Reviews
5 star 8
4 star 4
3 star 2
2 star 2
1 star 2
Review Rating: 3.78
18 Customer Reviews
The reviews are automatic translation.
Kettle cleaning
From Japan
On 2017-04-07 17:12:10
Compared with other products, it is difficult to open the gap between the cheeks and nose. In other words, I feel that fits to.
This review is about item#6810571.
Disinfection work
From Japan
On 2016-11-14 22:17:40
It has been reliably collected from the mask. Because breathing can also be comfortably, it was saved.
This review is about item#6810571.
Thunder dust measures at the time of use
From Japan
On 2016-06-08 08:29:13
Removal of dust is there power, but it is a situation, such as rubber part is melted and allowed to stand for a long period of time in a state in which the sebum to the rubber portion in contact with the face is attached. Or it will not be somehow?
This review is about item#06810571.
Manufacturing wood products on the premises
From Japan
On 2016-03-15 08:06:06
Always so mounted bought regularly.
This review is about item#06810571.
During polishing work, use.
From Japan
On 2015-12-23 09:35:51
It had been previously used. Is Kaikae.
This review is about item#08214202.
It will be used when you are sometimes the dust work.
From Japan
On 2015-12-21 16:40:19
It had also used the last time, but requires periodic replacement because tends to suck in outside air when the exhaust valve has become brittle.
This review is about item#06810571.
Sanding work
From Japan
On 2015-12-08 19:55:56
I used one year in the wear of daily 6 hours. The beginning is good, but you will not contact the silicon surface out of shape. If you check the back of the intake valve at the time of filter replacement, and faint with dust. Brass Chick part will come cracking and deterioration crisp. Durability of the mask, not recommended if seek the confidence of the filter.
Working in the dust
From Japan
On 2015-09-20 10:22:01
Price is cheap split, the dust of the intrusion is small It was easy to work with.
This review is about item#08255947.
Dust work
From Japan
On 2015-09-03 19:54:18
The same thing that was purchased in Homusen before ♪ that was used very long, was Kaikae in. Person in early deterioration of the filter cover. Specifically, it has cracked and keep the filter cover in case of filter replacement. Kaikae in a few years from, indeed Sekkaotai (around the nose), but is now in tatters, because it is not the ones you are using deterioration Kana? Every day by sebum, whether before the care of after use was bad to think you crack. Other degradation is not seen. A few years since the last purchase, also thank you ♪
This review is about item#08214211.
Use at the time of polishing of the FRP product.
From Japan
On 2015-08-10 22:54:35
Fit feeling good.
This review is about item#06810571.