In the UK, the Health and Safety Executive (HSE) does not view ventilation as an optional luxury; it is a critical safety control. Under the Control of Substances Hazardous to Health (COSHH) regulations, employers have a legal duty to prevent—or adequately control—exposure to hazardous substances.
For many businesses, a failing or inefficient ventilation system is not just a maintenance headache; it is a significant legal liability.
What Does COSHH Actually Demand?
COSHH is not just about having “some” ventilation. It is about effectiveness. If you are handling acidic vapours, chemical fumes, or hazardous dust, your ventilation system must be capable of capturing these at the source and exhausting them safely.
If your ductwork has leaks, or if your fan is not providing the required extraction rate to maintain a negative pressure at the source, you are in breach of regulations. This is where plastic ductwork provides a twofold advantage: it is airtight when correctly welded, and it doesn’t degrade, meaning your system performance stays consistent from year to year.
The Importance of Routine Testing
COSHH regulations mandate that any local exhaust ventilation (LEV) system must be thoroughly examined and tested at least every 14 months. However, simply having a record of the test is not enough. You need to know that your system is performing as it was originally designed.
We often visit sites where the ducting has been “repaired” with tape or improper sealant, or where the fan has been swapped for a cheaper, mismatched model. These ad-hoc fixes are the first things an inspector will flag.
Staying Compliant with Plastica Technologies
Compliance starts with the installation. When Plastica Technologies designs your system, we document the performance criteria, including the face velocity at the hoods and the total system pressure.
Documentation: We provide the necessary technical specs to support your COSHH records.
Integrity: Our welded plastic seams create a monolithic structure, meaning no air leakage, which is vital for maintaining the capture velocity required by law.
Preventative Maintenance: We offer maintenance programmes designed to catch issues before they lead to a failed safety inspection.
Compliance isn’t about passing a one-off test; it’s about ensuring your staff are protected every single day. If you are concerned about your current LEV status or need an upgrade to meet modern safety standards, reach out to us for a consultation.
