Services Provided

  • Air-conditioning & ventilation service, maintenance, callouts & repairs to all types of HVAC systems.
  • HVAC system designs to local H&S & SANS 10400 requirements
  • Specialized in warehouse air-conditioning control and insulating.
  • BMS controls and systems remote management.
  • Surveys and reports on Covid 19 applications required for your needs in relations to HVAC.
  • Decontamination fogging with certified and eco-friendly application together with Filtamatix & Oxypharm products.
  • Air quality testing complete with reports and laboratory feed back.

Covid 19 – Application levels of services

Level 1 – Low Risk

  • Normal office environments to dealerships and warehousing.
  • Servicing of HVAC systems including Filters.
  • Ensure Ventilation systems operational and working.
  • Report & offer solutions.

Level 2 - Medium Risk

  • Normal office environments to dealerships, warehousing and normal medical facilities.
  • Servicing of HVAC systems including Filters.
  • Have 2 sets of filter for for pleated filters and filter media, remove and replace.
  • Add Portable Air filtration systems, link back into existing HVAC equipment where possible.
  • Add Portable Humification units to control Humidity in office or specified areas Surface and area decontamination Fogging to provide total cleaned environment and surfaces.

Level 3 – High Risk

  • Normal office environments with high safety values to warehousing and high care medical facilities.
  • Servicing of HVAC systems including Filters Have 2 sets of filter for for pleated filters and filter media, remove and replace.
  • Add Portable Air filtration systems, link back into existing HVAC equipment where possible.
  • Surface and area decontamination Fogging to provide total cleaned environment and surfaces.
  • Upgrade existing HVAC systems to improve ventilation.
  • Look at UV light applications for new and existing Buildings.
  • New Building designs to incorporate new ideas of full HVAC complete with humidly.
  • Control full exhaust options to circulate refresh air.
  • Allow for 2 stage Filtration , Primary Pleated washable , secondary Hepa type for bacteria and viruses.

New Developed Buildings

  • Apply new idea cost effective design to keep systems practical in achieving safe working environment in relation to operation of heating, ventilation, and air-conditioning systems and guidelines set out for Covid-19.
  • New Designs to Incorporate conditioned air with required filtration “Merv 18” or with circulation of Air that does not return into the working environment.
  • Still insure we follow all standard regulations Sans10400 etc.. And add improved options.
  • New Designs should look at a holistic view around health and not only Covid 19 virus.
  • Space planning and modulating of people to allow safer feel of distancing and gatherings.
  • Virtual applications for information of Products and sales.

HVAC- Systems


Insure and maintain good air ventilation where possible, on central type systems Where possible set up controls to run 100% Fresh air and dump “exhaust” the return Air into the out side atmosphere. This then limits the movement of unwanted pathogens Keep systems running longer hours (24/7 if possible).  


Improve central air and other HVAC filtration to MERV-15 (ASHRAE 2017b) or the highest level achievable.

Most buildings besides medical facilities have std washable filters which is a Hepa Filter achieve the MERV-18 as used in high level medical facilities. Reason is system not designed top handle the pressures loss these filters create.

Following the above it is crucial to keep HVAC systems serviced and well maintained and improve on system ventilation and filters where possible.


Maintain a constant temperature and humidity recommended RH 40% to 60% (Mousavi et al. (2019) report that the scientific literature generally reflects the most unfavourable survival for microorganisms when the RH is between 40% and 60%).

Data and research show us that if people in offices, hospitals, and schools manage their indoor relative humidity at 40-60%, human immune mechanisms for physiological defence are improved.

Not only does humidifying the indoor environment decrease infectious pathogens in the air we breathe, it also bolsters our own immune systems, which is critical, now more than ever.


It is crucial to keep HVAC systems serviced and well maintained and improve on system ventilation and filters where possible.

All the above we must still insure it is done in conjunction with daily staff sanitisation and safe work procedures set out for SARS-CoV-19 virus regulations an guidelines.

Dteq Air are also looking at other means to improve building’s and create safer working environment. We will be offering air quality tests and decontamination, for all building types.



The Nocotech automated concept of disinfection consists of a submicron diffusing process using a biodegradable disinfectant (Nocolyse, Nocolyse one shot, Nocolyse food) which is dispersed via an automated disinfection device. The disinfection device transforms the disinfecting liquid into a completely dry fog. This is achieved by generating a particle size of less than 5 micron through high- speed diffusion. The process therefore creates a dry gas which disinfects all surfaces without exception. This is particularly useful for unreachable areas which are difficult to get to and clean. Every square centimeter of the space is disinfected with a lethal effect on COVID-19 as well as staphylococcus (including MRSA), enterococcus (including VRE), H5N1, H1N1, legionella, aspergillus niger, candida albicans and other highly infectious microorganisms to > 6 -log reduction.


The world's most powerful disinfectant which is non-allergenic, non-corrosive to all surfaces including electronic devices and completely safe because it leaves absolutely no residue. Nocolyse has been tested and approved by the NRCS (National Regulator for Compulsory Specifications which took transfer of the regulatory functions from the SABS in 2008).

Nocolyse is being used in operating theatres, isolation and intensive care wards as well as laboratories where COVID-19 and other dangerous pathogens are prevalent. The disinfection process destroys pathogens like bacteria, mould, fungi and viruses that exist on surfaces and in the air, thus decontaminating the entire space. Regular disinfection is essential to ensure continuous infection control to protect employees, families and children.


Offices / Shopping centres / Transports / Communities / Dental Practises / Medical / Industrial / Veterinary / Schools

Contact us: Tell: 011 869 4845 / Cell: 083 555 5436 / email:

Safety and Risk Assessment's

In addition to generally applicable health and safety protocols, each sector must agree upon a COVID-19 prevention and mitigation plan, approved by the Minister of Health and any other Minister relevant to the sector.

Individual businesses or workplaces must have COVID-19 risk assessments and plans in place, and must conduct worker education on COVID-19 and protection measures:

  • Induction regarding COVID–19.
  • Identification and protection of vulnerable employees.
  • Safe transport of employees.
  • Screening of employees on entering and in the workplace (record keeping of all screening).
  • Prevention of viral spread in the workplace.
  • Hand sanitisers and face masks.
  • Cleaning of surfaces and shared equipment.
  • Cleaning of facilities, ablutions, accommodation, lecture room & refectory.
  • Good ventilation.
  • Shift arrangements and canteen controls.
  • Managing sick employees.
  • Monitoring systems must be in place to ensure compliance with safety protocols and to identify infections among employees.
  • Anyone with even a mild cough or low-grade fever (37.5C or more) needs to stay at home. They should also stay home (or work from home) if they have had to take simple medications, such as paracetamol/acetaminophen, ibuprofen or aspirin, which may mask symptoms of infection.
  • All employees will be asked to not come to Dteq if they have any illness whatsoever.
  • Keep communicating and promoting the message that people need to stay at home even if they have just mild symptoms of COVID-19.


  • Training of staff and employees.
  • Continually re-enforcing of universal hygiene.
  • Enforce physical distancing in the workplace.
  • Continue use of facemasks.
  • Promotion of good hygiene practices.
  • Promote Healthy lifestyles for stronger immune systems.
Brands we use