Any employer who uses a local exhaust ventilation
(dust/fume extraction system) to control dust or fumes, must ensure that the system is effective and is in good working order.
A general exhaust ventilation
or standard comfort HVAC will dilute particulates over time, but it will not keep up with the rate of new contaminants being added to the air during printing.
Local Exhaust Ventilation
: Aerodynamic Processes and Calculations of Dust Emissions
The HSE says book a free consultation with independent experts to check that all Local Exhaust Ventilation
(LEV) systems are compliant to COSHH regulations 7 & 9; and it maybe the best money you never spent.
The objective of the testing program was to compare the whole-building, multi-zone, indoor air quality performance between continuous exhaust ventilation
both with and without central system recirculation mixing, central-fan- integrated supply ventilation, and energy recovery ventilation.
Continuous exhaust ventilation
from the master bathroom increased outdoor air exchange by about 0.1 air change per hour (ach) over the Baseline in the Main and Master zones, but the increase was less in the Middle and Front zones where the air exchange rate remained below 0.1 ach.
Recommended ventilation efforts include some combination of general room and local exhaust ventilation
. The two most prevalent approaches to local exhaust ventilation
aimed to reduce surgical smoke levels are portable smoke evacuators and room suction systems.
However, the value proposition for investing in DCV is often based on rule-of-thumb estimates using a $/cfm ($/L x s) index (i.e., annual energy cost to operate the CKV system divided by the average exhaust ventilation
rate), typically ranging between $1 and $3 per cfm ($2 and $6 per L/s) per year.
FLEXTRACTION 01664 410641 supplier and manufacturer of Local Exhaust Ventilation
(LEV) products has appointed John Horsey as Product Engineer with special responsibility for the design of new extract/filtration systems to complement the Company's current product range.
The company, which also provides water treatment, electrical and local exhaust ventilation
services, has developed a strong list of business clients which include Calsonic Kansei, Akzo Nobel, Unipress and Walker Snack Foods.