Laboratory air purifier
Halo is a filter unit designed to be installed in the ceiling of a laboratory to clean and re-circulate the air within the space. It operates by the use of a built in fan that pulls air through a filter to remove contaminants. Halo filter units help reduce the accumulation of concentrations of chemicals that might be generated in laboratories outside approved exposure control devices (e.g. fume hoods, vented storage cabinets, etc…), but is not designed to replace them. A soft band of LED light assures the lab personnel that the air is clean. When the LED lights pulse, Halo is letting them know that it is sensing and capturing the fugitive chemicals. The usage and the management of each Halo unit is possible via an embedded webportal from a smartphone, tablet or computer.
High performance multi-disciplinary “Chemplus” filter
The “Chemplus” filter equipping the Halo derives from the Neutrodine filtration technology equipping the Green FumeHoods launched 6 years ago by Erlab, which are now widely used in many laboratories in the American, European and Asian continents. It is the result of 46 years of research in Erlab R&D laboratories in France and has the capacity to filter a very wide variety of chemicals, from COVs, acids to bases, separated or combined. It offers also a high retention capacity allowing the filter to last long time.
User-friendly communication with the Halo
When the LED lights are pulsing, it indicates to the lab personnel that the Halo is treating contaminants presently detected in the lab air by its sensor. When the LED lights are fixed, it means that the air quality level requested is obtained. When the LED ights are pulsing continuously for more than one hour, it indicates that the filter shall be changed.
Each Halo is identified with it own IP address. You just have to scan the QR code of the Halo with your smartphone or to connect your computer to the Halo with an Ethernet (RJ45) cable to check its status on your screen such as Halo usage time, Halo filter status, sensor sensitivity, blower status, replacement filter date, …
How many Halo units in a lab room?
One Halo is designed to treat a volume of up to 60 m3 or approx. 20 m2 of lab room. For example a room with a size of 80 m2, 3 m height, will need 4 Halo units, all placed at the ceiling as close as possible to the center of each area of 20 m2.
How the Halo can help to reduce the energy consuming Air Change per Hour (ACH)?
The 2011 Edition of “ASHRAE HVAC Applications Handbook, Chapter 14/16: Laboratories” mentions minimum airflow rates in the range of 6 to 12 Air Changes per Hour (ACH) when the lab is occupied, but explains that studies show that a range of 8-12 ACH would me more effective to clean the fugitive chemicals present in the lab room air. Such a level of air change per hour obliges to exhaust to outside very large amounts of air-conditioned air and is extremely energy consuming. Halo performs the same duty as the Air Change per Hour but returns the cleaned air- conditioned air after filtration into the room without consuming it, a considerable saving of energy of several thousand US$ each year!
Halo is not designed to replace completely the ACH, but can help to reduce it dramatically. Tests performed by the independent “Exposure Control Technology (ETC Inc.)” testing laboratory in USA confirm that one Halo can help to reduce the ACH from 10 to 4 for a room volume of 60 m3 with a similar cleaning efficiency, a saving of an estimated 4000 US$ per year per Halo unit.
Choice of 4 operating modes!
Mode « 24/7 »
The
ventilation of the Halo is running 24 hours/7 days a week!
Mode « Min/max detection »
Ventilation starts at low
speed and gets maximum speed when a pollution threshold is reached.
Mode « Unique detection »
Ventilation
starts when a defined pollution threshold is reached.
Mode « Day/Night »
Ventilation values are defined for « Day » (8 am to 8 pm) and « Night »
(8 pm to 8 am).
Technical specifications
