Automatic regulation of the
air flow rate
Operating time on fully
charged battery
Weight of the blower
device without filters
Proflow
2
SC 120 minimum 120 l/min minimum 4 hours 1,590 kg
Proflow
2
SC 160 minimum 160 l/min minimum 4 hours 1,590 kg
Proflow
3
120 minimum 120 l/min minimum 4 hours 1,810 kg
Proflow
3
180 minimum 180 l/min minimum 4 hours 1,810 kg
Selection of blower-assisted breathing protector equipped with filter
(In Australia and New Zealand, see the next page for the limitations of AS/NZS 1716:2012.)
Type of protective device Multiples of threshold concentration **) Remarks, limitations
APF (Assigned protection factor)
BS 4275 (GB) BGR 190-ZH1/701(DE)
Power-assisted half mask with
particle filter
TM2P 20 100
Power-assisted full face mask
with particle filter
TM3P 40 500
Power-assisted face shield or welding shield
with particle filter
“Open” facepieces, such as helmets or hoods,
do not provide sufficient protection in case of
breakdown or inferior output of the blower.
Therefore, devices of class TH1 must never be
used against carcinogenic, very poisonous or
radioactive gases and vapours.
TH1P 10 5
TH2P 20 20
TH3P 40 100
Device with combined filter The specified multiples of threshold value for the gas or
particle filters are given separately, but in all cases the
lowest value applies.
Power-assisted half mask with gas filter *)
TM2 gas filter class 1, 2 or 3 20 100
Power-assisted full face mask with gas filter
*)
TM3 gas filter class 1, 2 or 3 40 500
Power-assisted face shield or welding shield
with gas filter *)
For devices with combined filter apply the
relevant limitations of gas and particle filters.
TH1 gas filter class 1 or 2 10 5
TH2 gas filter class 1 or 2 20 20
TH3 gas filter class 1 or 2 40 100
*) Provided that the maximum permissible detrimental gas concentration for the gas filter is not
exceeded. For power-assisted filtering devices with gas filter, concentration must not exceed
0.05 vol.% in gas filter class 1 and 0.1 vol.% in gas filter class 2 and 0.5 vol.% in gas filter class 3.
**) If national guidelines exist: in all cases the lowest value applies.
AUSTRALIA AND NEW ZEALAND
AS/NZS 1716:2012
Selection considerations – Powered air purifying respirator (PAPR) *)
PAPR fitted with PAPR Filter type Minimum protection factor
Full facepiece PAPR – P3 Particulates 100+
PAPR – Gas filter Class 1 Up to 10 to a maximum concentration of 1000 ppm
Half hood style PAPR – P1 Particulates Up to 10
PAPR – Gas filter Class 1 Up to 10 to a maximum concentration of 1000 ppm
Full hood & blouse PAPR – P1 Particulates 10
PAPR – Gas filter Class 1 Up to a maximum concentration of 1000 ppm
*) Contact the Scott Safety Customer service for more detailed information on filter selection,
appropriate maximum use concentration levels or AS/NZS 1715:2009 Selection, use and
maintenance of respiratory protective devices or to relevant local authorities for further guidance.
Scott Health & Safety
137 McCredie Road
Guildford NSW 2161
Ph: (02) 8718 2200
Fax: (02 8718 2211