English (Honk KOng)Hong Kong S.A.R of China

27 May 2020

Coronavirus sanitization tips

As lockdowns begin to ease and people return to work and leisure, businesses will be under pressure to maintain high levels of hygiene and sanitizing for COVID-19. Many companies have suggested they will be performing a deep clean before reopening, with some cleaning firms retraining staff in preparation for this type of work.

We all have standards of personal hygiene we can adhere to by following best practice for handwashing, and using hand sanitizer when soap and water are unavailable. But what do responsible companies need to think about when adapting their routines and standards in light of the ongoing coronavirus pandemic?


Tip 1: Where?

The average person comes into contact with thousands of germs every day. Keeping all surfaces in all working environments clean by wiping them down with disinfectant will help prevent the spread of the COVID-19 virus, as well as other viruses and bacteria. As a priority, clean:

  • High-traffic areas – things that people have to touch on a regular basis like doorknobs, security keypads, and elevator buttons.
  • High-risk areas – places where germs are easily spread, like handrails and public restrooms.
  • High-safety areas – like food preparation and handling areas.


Tip 2: When?

Cleaning is like applying sunscreen in summer – you have to do it regularly and consistently for it to be effective. No amount of cleaning, however rigorous, will last, so establish a routine and checklists for what cleaning needs to be done and when. 


Tip 3: What with?

It is important to understand whether the chemicals you are using and how you are using them are right for the job, and able to adequately protect against COVID-19 and other viruses and bacteria. Considerations include:

  • Chemical concentration. It is crucial to use the correct sanitizer-to-water ratio: too little sanitizer and the solution won’t be an effective disinfectant; too much sanitizer and it will be too strong and unsafe to use.
  • Temperature. Some chemicals will only work within a certain temperature range. For example, chlorine-based solutions will be ineffective at lower temperatures but may evaporate at high temperatures.
  • Contact time. This means the amount of time a sanitizer needs to be in contact with a surface to work.


All these factors will dictate what product is best for your situation. With experience working with hospitals and in other high-risk environments, NCH Asia Pacific has a range of products ideally suited to help tackle the spread of infectious diseases. Such as hospital-grade disinfectant that is approved for food contact surfaces, and hand cleaner that cleans while also conditioning skin with lanolin to help protect hands from regular use. If you would like more information on the products and services we offer, please get in touch with our specialist team.