---
title: "Laboratory extraction fume hood"
description: "The ducted LabAirTec fume hood from Renggli connects to the building exhaust and removes vapours from the work chamber. S1 to S4 safety concept, EN 14175."
canonical_url: "https://www.renggli.pl/en/offer/fume-hood/extraction-fume-hoods"
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  de: "https://www.renggli.pl/de/angebot/abzuege/extraktionsmerkmale.md"
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---

# Laboratory extraction fume hood

> The ducted LabAirTec fume hood from Renggli connects to the building exhaust and removes vapours from the work chamber. S1 to S4 safety concept, EN 14175.

![Renggli ducted fume hood with an illuminated work chamber, sliding sash and under-bench cabinets](https://www.renggli.pl/m/dygestorium-wyciagowe-rozszerzone-5x4__h1850f.webp)

Fume cupboards connected to central ventilation, with a four stage airflow safety system. Chamber dimensions are matched to the equipment and to the room.

## Safety Pyramid Concept

1. **S1 S1 Standard Version**

    Bypass System - laminar airflow

    Air extraction modules routed in special profiles to enhance extraction efficiency

    Monitoring and control of the fume hood through an intuitive eye-level panel

    Media drawer for easy handling and simple media upgrades
2. **S2 S2**

    Control of the discharged air volume concerning the position of the front limiter. The condition-dependent air volume indicator significantly increases safety.
3. **S3 S3**

    Automatic closing of the front limiter increases work safety and significantly reduces costs.
4. **S4 S4**

    Active air intake. Maximum safety with significantly reduced operating costs.

## Basic dimensions

- **height**: 2600 mm, 2400 mm
- **width**: 1200 mm, 1500 mm, 1800 mm

The higher the configuration level, the greater the operating cost savings for LabAirTec fume hoods.

## Frequently asked questions

**What is the Extraction fume hood category?**

An extraction fume hood is a LabAirTec fume hood built on a four-stage safety pyramid concept, from S1 to S4, developed with Renggli engineers.

See also: [all offer categories](https://www.renggli.pl/en/offer).

**How is the extract volume calculated?**

The extract volume follows from the open sash area: a 1.2 m by 0.5 m opening, that is 0.6 square metres, at 0.5 m/s gives 1080 cubic metres per hour.

A connection to central ventilation is designed for 400 to 1200 cubic metres per hour and 8 to 12 air changes per hour.

**What does an inspection of a ducted cupboard cover?**

A technical inspection is carried out at least every 12 months, in line with PN-EN 14175.

A full inspection covers installation and operational qualification, a smoke test, an anemometer measurement of the airflow, an alarm check and sensor calibration. The sash cables and bearings are checked too, before they fail.

**How do I ask for a quote?**

A floor plan or the room dimensions, a list of workstations and details of the services are all we need to prepare a quote.

The layout and the visualisation are ready before the quote, so it is clear what you are paying for. The office works Monday to Friday, 7:00 to 15:00.

See also: [the contact form](https://www.renggli.pl/en/contact), [the questions and answers page](https://www.renggli.pl/en/faq).