Although PPE can be used to protect
from the dangers of breathing dust, a
primary move should be to first
remove or limit the generation of the
dust. If this is not possible, the air
that carries the dust should be
captured and filtered. Helping with
this task, modern class M extraction
vacuums offer air speed
measurement, high performance
filtration and sealed dust disposal.

The Makita 447M class wet or dry
extractor has a maximum airflow of
3.1m3/min a maximum sealed
suction rating of 23kPa; automatic
blockage warning and automatic
filter cleaning to maintain the
required performance in operation.

This ‘X-treme’ filter system
automatically channels air pulses to
both sides of the filter when the
vacuum is switched on so that the
filter is cleaned by pressure and the
deposits sucked into the 45 litre
capacity waste tank.

For masonry, concrete and plaster
the Makita 446L extraction unit is a
keenly priced 23kpa rated vacuum.