HI3P portable fume hood

The visor improves pollutant capture by limiting parasitic air intake.
It increases the effectiveness of the hood at a distance from the front opening,
without increasing airflow or noise level.

The small visor is suitable for operations carried out close to the hood
(up to approximately 15–20 cm).
The large visor provides better capture efficiency at greater distances
(20–25 cm) and offers enhanced safety when the source is diffuse
or when operator movements vary.

No. The visor does not increase fan airflow.
It helps make better use of the available airflow
by improving capture velocity in the working area.

The PFP1 pre-filter captures dust and particles upstream of the activated carbon filter.
It protects the carbon media, extends its service life,
and ensures more stable performance over time.

Yes, when pollutants are exclusively gaseous
(odours, solvents, light vapours without particles).
This configuration maximises initial airflow,
but requires closer monitoring of the activated carbon filter condition.

For operations carried out at a distance or in the presence of air disturbances,
the large visor + pre-filter combination provides
the highest level of safety and capture efficiency.
For occasional operations carried out close to the hood,
a small visor may be sufficient.