CHEMGENE HLD4H CE Marked High Level Medical Surface Disinfectant

Our HLD4 formula has been developed with the Biocidal Products Regulations (BPR), REACH, CLP (Classification of Labelling and Packaging) and CDG (Carriage of Dangerous Goods) regulations in mind to ensure that as a user you are future proofed from the need to make changes to your product portfolio. Even under the strictest health and safety, occupational health and environmental risk assessments, the HLD4 requires minimal consideration.

The synergistic blend of active and inert ingredients enables CHEMGENE HLD4H to work quicker than conventional High Level Disinfectants and ensure that apoptosis (cell death) is achieved rather than merely suspending activity as with conventional products.

XTM302 CHEMGENE HLD4H - High Level Surface Disinfectant T/Spray 750ml 6 100
XTM304 CHEMGENE HLD4H - High Level Surface Disinfectant - self dosing 1 Litre 6 80

CHEMGENE HLD4H is procured by NHS England for use in their Testing Laboratories as part of the Covid-19 pandemic response.

Materials Compatibility

Independent laboratory testing demonstrates no corrosion or deterioration of the following materials, even after long-term repeated immersions:
Rubber compounds, Plastics, Fibreglass, Stainless Steel, Mild Steel, Aluminium, Copper, Brass and other materials found in clinical practice.


For bio-hazard contamination (blood, urine, vomit etc) dilute to 1:10 (10%). To make ready-to-use solution, dilute 100ml of concentrate product in 1Litre of water of suitable quality.

  • Wash down all surfaces with disinfectant at 1:10 (10%) and dry with paper towel or allow to dry naturally.
  • For high risk disinfection of organisms in dirty conditions dilute at 1:50
  • For general disinfection dilute at 1:100 (1%)
  • See application sheets for further information.

CHEMGENE HLD4H wipes can also be used to wipe surfaces and be allowed to dry.

CHEMGENE HLD4H has been tested effective against:

Bactericidal / Yeasticidal Activity

Enterococcus hirae, Escherichia coli, Legionella pneumophila, listeria monocytogenes, Methicillin-resistant Staphylococcus aureus, Methicillin-resistant Staphylococcus pseudintermedius, Pseudomonas aeruginosa, Salmonella tryphimurium and Staphylococcus aureus. Candida albicans

Virucidal / Bacteriophage Activity

Adenovirus, Hepatitis B, Herpes Simplex, Murine Norovirus and Vaccinia Virus (including Coronavirus SARS CoV-2 in 30 seconds)
Lactococcus lactis

Dr Martin Moncrieffe of the Department of Biochemistry, Cambridge University has certified that ” Formulation HLD4… very effective at precipitating/denaturing DNA and RNA”

CHEMGENE HLD4H is manufactured in accordance with Quality Management System ISO 9001 and is biodegradable under OECD conditions.
The HLD4 formula is being supported through BPR and REACH and contains no substances classified as dangerous to health.
CHEMGENE HLD4H can be used at a dilution of:

  • 1:100 General Bactericidal Use
  • 1:50 Intermediate Use
  • 1:10 In the presence of blood and body spills and for use with tissue cultures and discard jars

Unopened CHEMGENE HLD4H concentrate has a shelf life of 3 years, factory diluted product has a shelf life of 2 years.

A safer-to-use disinfectant all round

Health and safety issues and product compatibility are of real importance to everyone, MEDIMARK SCIENTIFIC encourages all users of chemical products to pay special attention to the advisory statement within the Material Safety Data Sheets and upon product labeling.

CHEMGENE HLD4H CE Marked High Level Medical Surface Disinfectant