Hello, everyone.
This is Enta.
Do you wear a dust mask?
We buy this a lot at our house.
3M Dust Mask 8805 DS2
That's the product, isn't it?
Every year, our company buys a huge amount from 3M at the Welding Festival held yesterday. (Apparently, it’s enough to make a profit reselling it—though we don’t actually resell it.)
The box says "DS2" on it.
Actually, this isn't a manufacturer's model number or anything like that,Dust ResistanceIt's that symbol.
Classification of Dust Masks by Type of Work
| ・Work or emergency operations within areas where there is a risk of contamination, such as due to a radioactive material spill ・Work involving potential exposure to dioxins ・Other tasks similar to those listed above |
RS3 RL3 *If oil mist or similar substances are present, select "L." |
| ・Work in areas where metal fumes are emitted (including welding fumes) ・Control concentration: 0.1 mg/m3(※1) Work performed in areas where dust or other particles from the following substances are emitted ・Other tasks similar to those listed above *1: Cadmium, chromic acid, dichromic acid, beryllium, lead, and their compounds |
DS2 DL2 RS2 RL2 and has a particle capture efficiency of that level or higher DS3, DL3, RS3, RL3 *If oil mist or similar substances are present, select "L." |
| ・General dust-generating work other than those listed above | DS1 DL1 RS1 RL1 and has a particle capture efficiency of that level or higher DS2 DL2 RS2 RL2 DL3 DS3 RS3 RL3 *If oil mist or similar substances are present, select "L." |
Classification of 12 Types of Dust Masks (DS1–RL3)
| Disposable / Replaceable | Test Particles and Collection Efficiency | ||
|---|---|---|---|
| S Solid test particles Measurements were performed using sodium chloride (NaCl) |
L Liquid on the test particle Measured using di-n-octyl phthalate (DOP) |
Category 1/2/3 (Particle Collection Efficiency) |
|
| D Disposable Dust Mask |
DS3 | DL3 | Category 3: 99.9% or higher |
| DS2 | DL2 | Category 2: 95.0% or higher | |
| DS1 | DL1 | Category 1: 80.0% or higher | |
| R Replaceable Dust Mask |
RS3 | RL3 | Category 3: 99.9% or higher |
| RS2 | RL2 | Category 2: 95.0% or higher | |
| RS1 | RL1 | Category 1: 80.0% or higher | |
When it comes to cement dust, I suppose...Problems with Using DS2I don't think so.
I apologize for the vague wording—"I think"—but there isn't a specific classification for cement and the like.
I checked by grain size and other criteria, but nothing came up.
Since metal fumes (smoke from welding) are also classified as DS2, they are finer than cement dust.
The opinion is that, since asbestos is acceptable under DS2, it is likely the case.
This is an absolute must-have, so please use it if you’re working with cement-based products like Plantman or when drilling in environments with heavy dust.
It is reported that the incidence of cancer among U.S. citizens—particularly firefighters and police officers—has risen due to the dust (and other airborne particles) released when the buildings collapsed during the previous terrorist attacks in the United States.
When you think about it, it’s probably a good idea to wear a dust mask, isn’t it?
These days, one in every two people will develop cancer.
To prevent that from happening due to work and to ensure you can work with energy, we provide dust masks here!
It's the company's responsibility to protect its employees' health, isn't it!?
A company is made up of people!
There is a wide variety of types, and the unit prices vary.
If you search for "DS2 dust mask," you'll find them starting at 60 yen per mask.
Please consider this at your company.
You can't buy good health with money. But you can buy as many masks as you want.
Regret doesn't do any good, you know?
See you later.
