Description and characteristics Respiratory protection Half mask
The respiratory protection mask (consisting of half mask and two filters) covers
the entire nose and mouth area.
The half mask is made of flexible natural rubber.
The material, its shape and dimensions make it comfortable to wear.
The mask has an exhalation valve and 2 threaded connections.
The filters can be easily replaced (replacement filter sets are sold separately)
Model : 756
Filter
two filters: type a1; according to en 140
The filter is cylindrical (diameter 79 mm) with a black body. The filter consists of
two white fabric filter discs in the inner surfaces.
compatible with 755/756 filters
Application
Ideal for full protection in areas (oxygen concentration with volume above 17%) with contaminated
Gases and vapours with a boiling point above 65°C (e.g. solvents or paint) and organic chemicals.
Technical data - Mask
Breathing resistance:
- sinusoidal: 25 x 2 l / min
- Inhalation: 0,52 mbar
- Exhalation: 1,64 mbar
- continuous inhalation:
- at 30 l / min: 0.11 mbar
- At 95 l / min: 0,33 mbar
- co2 content (dead space): 0,6%
- Standards: UNe-en 140: 1992
- UNe-en 141: 1992
- Directive 89/686/eEC
- en 140:1999
- en 143:2000/A1:2006
- en 14387:2004+A1:2008
marking of respiratory protection filters
| identification colour
|
Type |
Area of application |
| brown |
A |
Organic gases and vapours
with boiling point > 65 °C |
| brown |
ax |
Low-boiling organic compounds
(boiling point = 65 °C) of low-boiling groups 1 and 2 |
| grey |
B |
Inorganic gases and vapours
z. E.g. chlorine, hydrogen sulphide, hydrocyanic acid |
| yellow |
e |
Sulphur dioxide, hydrogen chloride
and other acid gases |
| green |
k |
Ammonia
and organic ammonia derivatives |
| blue |
no |
Nitrous gases
(nitrogen oxides) e.g. no, no2 |
| red |
Hg |
Mercury |
| black |
co |
carbon monoxide |
| orange |
Reactor |
Radioactive iodine
and radioactive iodine methane |
| purple |
SX |
Gas and vapours as specified by the manufacturer |
| white |
P |
Particles |
Filter classes (adsorption capacity)
Each filter also carries an indication of the filter class, as the filters are predominantly divided into three classes (1: low to 3: high) according to their adsorption capacity. The class indicates how much the mak (maximum workplace concentration) may be exceeded.
For gas filters a, b, e and k, the maximum gas concentration in class 1 is 1000 ml/m³ (0.1 vol-%), in class 2 5000 ml/m³ (0.5 vol-%) and in class 3 10000 ml/m³ 1 vol-%). There are different maximum periods of use depending on the maximum concentration and the substance (classification according to boiling point). For protection against group 1 substances, the filter may be used for a maximum of 20 minutes at concentrations of 500 ml/m³ and a maximum of 40 minutes at concentrations of 100 ml/m³. Against substances of group 2 the wearing time is limited to 20 minutes at concentrations up to 5000 ml/m³ and 60 minutes at 1000 ml/m³. For the filters No, Hg, Co and Reactor, the manufacturer's specifications regarding duration of use and concentration must be observed. Filter no may be used for a maximum of 20 minutes, filter Hg for a maximum of 50 hours.
Lowest breakthrough time in minutes
| class
|
Minimum capacity in grams |
Minimum breakthrough time in minutes
|
| 1 |
15,4 |
80 |
| 2 |
38,4 |
40 |
| 3 |
115,2 |
60 |
one-way Reusable
| |
FFP1 |
FFP2 |
FFP3 |
A1 |
A2 |
ABe |
ABek |
Grinding/Cutting/Drilling |
|
|
|
|
|
|
|
| Rust |
x |
x |
|
|
|
|
|
| Cement |
x |
x |
|
|
|
|
|
| Putty/Filler |
x |
x |
|
|
|
|
|
| Masonry/Concrete |
x |
x |
|
|
|
|
|
| Wood |
|
x |
x |
|
|
|
|
| Colours/varnishes |
x |
x |
|
|
|
|
|
| Anti-rust coatings |
|
x |
x |
|
|
|
|
| Anti-fouling lacquers |
|
|
x |
|
|
|
|
| Stone, quartz under mak-GW |
x |
x |
|
|
|
|
|
| Stone, quartz over mak-GW |
|
x |
|
|
|
|
|
| iron |
x |
x |
|
|
|
|
|
| High alloy steel |
|
x |
|
|
|
|
|
| cobalt/beryllium |
|
x |
x |
|
|
|
|
| cooling lubricant mist |
|
x |
x |
|
|
|
|
| Welding |
|
|
|
|
|
|
|
| unalloyed materials |
|
x |
x |
|
|
x |
|
| high-alloy materials |
|
|
x |
|
x |
|
|
| Zinc |
|
x |
x |
|
|
x |
|
| Soldering |
|
x |
|
|
|
|
|
| Asbestos (small-scale work) |
|
x |
x |
|
|
|
|
| Processing of glass/mineral fibres |
|
x |
x |
|
|
|
|
| Syringes |
|
|
|
|
|
|
|
| Dispersion paint |
|
x |
x |
|
x |
|
|
| synthetic resin lacquers |
|
|
|
|
x |
|
|
| Isocyanates - solvent based |
|
|
|
|
x |
x |
|
| Plant protection products |
|
|
|
|
|
|
|
| aqueous solution |
|
x |
x |
|
|
|
|
| organic/evaporative |
|
|
|
|
x |
|
|
Varnish/Paint |
|
|
|
|
|
|
|
| solvent-based coatings |
|
|
|
x |
x |
|
|
| water-miscible lacquers (containing solvents) |
|
|
|
x |
x |
|
|
| Pickling |
|
|
|
|
|
|
|
| organic solvents |
|
|
|
|
x |
|
|
| ammoniacal |
|
|
|
|
|
|
x |
| glue |
|
|
|
|
|
|
|
| solvent-based |
|
|
|
x |
x |
|
|
Dealing with |
|
|
|
|
|
|
|
| Sulphur dioxide |
|
|
|
|
|
x |
x |
| Hydrogen chloride |
|
|
|
|
|
x |
x |
| Mould/Fungi |
|
x |
|
|
|
|
|
| Bacteria |
|
x |
|
|
|
|
|
| Diesel soot/smoke |
|
x |
|
|
x |
|
|
| Cleaning |
|
|
|
|
|
|
|
| White spirit/nitro thinner |
|
|
|
|
x |
|
|
