The professional replacement filter filters organic gases and compounds as well as vapours with boiling point above 65°C, inorganic gases and vapours e.g. chlorine, hydrogen sulphide, hydrogen cyanide, sulphur dioxide, hydrogen chloride and other acid gases, ammonia and organic ammonia derivatives. The replacement filter is very light. The matching respirator (type 731/725) is also available in our shop.
- Diameter: 105 mm
- Thread depth 1 mm
- Thread diameter 40mm
- Thread height: 15mm
- Standards: en 14387, en 143
- Thread standard: round thread connection 40 x 1/7 inch according to din en 148-1
marking of respiratory 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 iodomethane |
| 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 |
|
|
